Detailed lists of characters from Codename: Kids Next Door.

Meet the Kids Next Door!

The KND organization consists of children who are on one mission: to free kids from the tyrannical rule of adults and make the world a better place for all kids. Judging by this, they KND are basically, spies. As with many spies, they are given codenames to hide their true identities and there are also enemy agents who are afiliated with many kid-hating supervillains. Each KND operative is assigned a numbuh after they gradutate from the Cadets Next Door academy in the KND Arctic Base.

To be a KND operative, you got to be under 12 years old. If you are 13 years old, you can't be a KND operative and KND operatives who turn 13 get decommissioned. If you are a KND Operative who's one of the best, 13-year-old KND operatives can be initiated into a secret KND organization in which teens get to stay in the KND and gather anti-kid information adults and teens are planning to KND Global Command.

• Numbuh One, leader of Sector V
• Numbuh Two, pilot and technology officer
• Numbuh Three, expert on medicine and "diversionary tactics"
• Numbuh Four, hand-to-hand combat expert
• Numbuh Five, spy and second-in-command of Sector V
• Numbuh Six (Bradley the skunk), honorary Kids Next Door operative in Sector V

Minor operatives on the animated series Codename: Kids Next Door who have only appeared a few times.

Template:Spoiler

Numbuh $1.50 appeared in Operation: E.L.E.C.T.I.O.N.S. where he defended Numbuh 1 in the student court.

Numbuhs 8A and 8B are identical twins who appeared in M.A.U.R.I.C.E., attacking the Teen Ninjas and ended up getting poxed.

First appearance: Op MAURICE

Numbuh 9 (Maurice) appeared as the title character in Op MAURICE. According to Numbuh 5, he was one of the greatest of the KND operatives. Long ago, Numbuh 9 swore that he would find the cure for the chickenpox and destroy Chickenpox Island. However, he turned thirteen and was decomissioned before he could complete his mission. Not wanting to lose their friend, Sector V defied orders and went to protect Maurice from the teenagers. Unfortunately, Maurice was kidnapped before Sector V could save him. Numbuh 5 (who got infected with the chickenpox by her sister, Cree) went on a solo covert operation to rescue Maurice, where it was revealed that Cree had designed a chickenpox cannon to infect all kids. In the end, it turned out that Maurice was a mole all along, working for KND to finally complete his mission against chickenpox. He secretly helped Numbuh 5 defeat Cree, turn the chickenpox cannon against the teenagers and destroy Chickenpox Island. He revealed to Numbuh 5 that some KND Operatives get to stay in the KND organization after they turn 13 -- they act as super-secret covert agents that infiltrate Teenager and Adult Facilities and gather anti-kid information the adults and teens might be plotting to KND Global Command. It is presumed that both Numbuh 5 and Cree have a crush on him. He likes Salsa too. He is voiced by Khary Patyon, known for playing Cyborg on Teen Titans.

First appearance: Op COUCH

Numbuh 10 made her first and only appearance in Op COUCH as one of the news readers at the beginning. She is a pale-skinned, red-haired, green-eyed girl with a seemingly no-nonsense attitude. Numbuh 2 described her as 'Easy on the eyes' which implied that she was good-looking. She had yet to have a major part in any of the storylines.

First appearance: Op SLUMBER

Numbuh 12 appeared in Op SLUMBER. She was one of the girls who went to Numbuh 86's slumber party and was thought to be her only real friend there. She later betrays the KND by helping Cree and Chad steal the Kids Next Door code module. She does this because she was almost thirteen. Realizing she'd be decommissioned soon, she decided to betray them before it happened.

First appearance: Op MACARRONI

Numbuh 13 appeared in Op MACARRONI. As his number suggests, he is a jinx (note Numbuh Three's Rainbow Monkey vase and the "Rainbow Monkey Lisa" macaroni art), and Sector V gave him back to the adults who had captured him, by stuffing him in the adults' bag for stolen macaroni art. His introduction scene at the start of the story, a prisoner exchange involving him and the Toilenator, is similar to a prisoner exchange early in the James Bond film Die Another Day. Voiced by Billy West.

First appearance: Op SLUMBER

Numbuh 23 appeared in Op SLUMBER. She was one of the girls who went to Numbuh 86's slumber party and later helps the others retrieve the code module after it is stolen, although she does not play a large part.

First appearance: Op ARCTIC

Numbuh 30c (voiced by Tom Kenny) appeared in Op ARCTIC, initially bundled in a thick coat, a hat and a scarf, joining them on a mission to take down a professor's weather control device to get rid of snow days. Later seen wearing an aloha shirt as he appeared to be turning against them, but it turned out it was for a snowcone being researched by the professor who they thought was making said device (Prof. XXXL, voiced by Frank Welker). Though his face is not shown even when he is without his extra clothing, Numbuh 30c very closely resembles Kenny from "Kenny and the Chimp", the only non-KND episode to appear in the Kids Next Door series.

Quotable Quote: "Oh, come on. Even my name should have given it away." (at this point, he throws off all his gear) "Numbuh 30c! 30 Celsius! That's like 80 Degrees Fahrenheit or something!"

First appearance: Op TRAINING

Although Numbuh 44 is classed as one member, they are actually two. The reason: they're identical twins. First shown guarding the Codemodule at the Arctic Base in Op TRAINING. They were also shown apprehending their prisoners in MATADOR and SNOWING. Also appeared in Op GRADUATES in which they were turned into a kangaroo and its joey. Both voiced by Lauren Tom (voice of Numbuh 3).

First appearance: Op TRAINING

Numbuh 60 is the drill sergeant at KND training, as seen in Op TRAINING. Was also shown organizing the operatives in Op GRADUATES as well.

First appearance: Op BRIEF

Numbuh 65.3 (Herbie) appeared in Op BRIEF, as a nerdy-looking communications officer who read the Sector V operatives a message about a hit warrant on Numbuh One, which turned out to involve the underwear he had just gotten as a gift. Later seen in Op BEACH telling One that there were no missions for him that day, in Op LEADER showing off his pocket protector to Lizzie, and at the graduation party in Op GRADUATES. Voiced by Dee Bradley Baker (voice of Numbuh 4).

First appearance: Op FUGITIVE

Numbuh 86 (Frances "Fanny" Fullbright) is the Head of Decommisioning (a pun, when someone is 86'ed, they are put out of commmision). She first appeared in Op FUGITIVE, as a girl who speaks with an Irish accent, generally berates ineffective operatives with the notable exception of any females (she is sexist against boys). She has been known to take the credit for certain operations even where her involvement was minimal (see Op FUGITIVE). She seems not to be well liked within the organization (after turning into a female dog in Op GRADUATES, one of the Numbuh 44's remarked "that figures"), and has admitted to not having any friends (with the exception of Numbuh Three). Her favored weapon is a mustard gun, and she seems to take an almost sadistic pleasure in her job. Her mother's nickname for her, as revealed in Op SLUMBER, is 'my little fannykin'. It has also been revealed she has had a crush on Numbuh 4 in Op E.N.D. (which he doesn't remember since he was decomissioned shortly afterward). It is possible she buries herself in her thankless occupation to make up for her lack of companionship. She often wears a green uniform and Army helmet, connotating the appearance of a drill instructor. Her favorite weapon (as seen in Operation: E.N.D.) is the M.U.S.K.E.T., while her preferred mode of transport is the D.O.H.D.O.H. Voiced by Jennifer Hale.

A previously high ranking KND Operative.

First appearance: Op FUGITIVE

Numbuh 206 is a KND operative who was supposed to be scheduled for decommissioning after he turned 13. While Numbuh 86 and the Sector V team were hunting him down, he got mixed up with Numbuh 362 while Numbuhs 3, 5 and 86 were running around, searching for him in the Delightful Children from Down the Lane's Mansion and Numbuhs 1, 2 and 4 guarded a dandelion from adult attacks.

He has not been mentioned since his apparent escape.

Note: Some people claim that Numbuh 206 never actually appeared in Op FUGITIVE, but was only mentioned as a plot point. However, others note that there is a brief shot of a hallway where a male (judging from his panting noise) is running down the hall in one direction, while a female (judging from her panting noise) is also running down the hall in the opposite direction.

First appearance: Op CHAD

Numbuh 274 (Chad Dickson) was a former KND operative and Supreme Leader of the Kids Next Door until he betrayed KND and was revealed to be 13 years old (once one gets that age, you're kicked out, as they consider teenagers the enemies). He became known as "the greatest Kids Next Door ever" by beating the Grown Up Gorilla Gang. He makes his first animated appearance in Op CHAD where he saves the KND from his own parents (meanwhile, the other operatives talk about trading cards and action figures of him). He is seen again in Op FUGITIVE and Op UNDERCOVER, where he is seen commanding the KND MoonBase HQ. His final appearance as Numbuh 274 was in Op END where he falsified files of KND operatives to prevent them from finding out about his 13th birthday, upped their ages and had some of them accidentally "decommissioned" (their minds are cleared of their memories of the KND), including Sector V (Numbuh 1's team). Numbuh 1 found out and exposed the conspiracy, but Tommy Gilligan, a.k.a. "Numbuh T", was kidnapped by 274 while he detached the MoonBase to send it into the Sun, but his plan was thwarted by Sector V and he was to be decommissioned, but Cree set him free. He is now called Chad. He is a teenager and the leader of his own group of football-playing teens called The Jets. (Op LEADER was his first appearance as a villain). His last name was revealed in ELECTIONS and it is revealed he goes to Hendry Middle School. Voiced by Jason Harris.

First appearance: Op FUGITIVE

Numbuh 362 is Supreme Leader of the entire Kids Next Door organization. She is a blond, brown eyed girl who gained the position after Numbuh 274's betrayal. She has been known to berate Numbuh 86 (!). She has also been called the KND's greatest spy (Op FUGITIVE). Not much else is known about her. She is a little short tempered too. Voiced by Rachael MacFarlane, voice of Francine Smith on American Dad, and sister of Seth MacFarlane of Family Guy fame.

Enemies of the KND. There are villains that appeared once or many times.

Father, actually named Mr. Wigglestein, is perhaps the archnemesis of the Kids Next Door, and he is also the legal guardian of the Delightful Children from Down the Lane. He can generate and manipulate fire and also has the ability to levitate (similar to the Human Torch), and morph his face. In Operation: A.R.C.H.I.V.E., Numbuh One claimed that he was the first adult to oppose children, by refusing to let a boy play horsey.

Father despises the KND, especially the Gilligan kids, Hoagie and Tommy (theories fly among fans about the possibility of him being their missing father) and he even hates his own children (as heard in G.R.A.D.U.A.T.E.S.).

His voice sounds similar to the way Numbuh Two remembers his dad's voice in Operation C.A.K.E.D.-F.O.U.R. Some believe that the theory of Father being the Gilligans' real father must be false, as Father claimed that Mr. Gilligan was a "loser".

His face was shown once in Operation A.R.C.H.I.V.E.: he is actually a fairly nerdy-looking fellow. In Op. P.O.O.L, his negative world self, Daddy, is seen without his normal darkness (he is shown in his true form).

Father's voice is clearly based on that of Orson Welles. This is not surprising, as he is voiced by Maurice LaMarche while his negative counterpart is played by Jeff Bennett.

Appearance: Man with black tie and overalls (regular form). Shadowy-looking person with flames on body (evil form).
Age: unknown
Intelligence: Above average
Speed: Somewhat fast
Failed Plans: Entrapping the Japanese KND (TRIP), getting his hands on the Code Module (TRAINING), turning the KND into animals (GRADUATES), making kids the secret ingredient of his cake (CAKEDFOUR)
Weapons: The flames on his body, Animalifcation Ray, Knightamatons, Gi-HUGE-ic cake pan.
Known Henchmen: His children, the Ice Cream Men, the Chicken Men, the Interesting Twins from Beneath the Mountain, the Deadly Ninjas and Cree, Chad and the Teen Ninjas
Affiliations: Himself, Mr. Boss

The Delightful Children from Down the Lane (referred to as the DCFDTL for short, or as the KND often call them, "Delightful Dorks") are a recurring group of well-behaved villainous children out to eliminate the Kids Next Door for setting a bad example.

Raised by Father, they're rarely seen apart--- in fact, they almost always stand in one specific formation, as shown in the picture, except for one episode (Operation: UNDERCOVER), in which the helmeted child, named Lenny, separates for most of the episode. They always speak in perfect unison (unless they're struck by fear). It is their near-emotionless personality that sometimes leads to their defeat.

It is assumed from clues scattered about the series (esp. Op ARCHIVE) that they were "created" when Father kidnapped several children and placed them in a "Delightfulization Chamber" which turned them into the adult-obeying villains they are now, though this has nearly been disproven by one episode involving "delightfulization" in which those who were delightfulized did not, in fact, become more Delightful Children, but rather became zombielike slaves to the DCFDTL. This could have been due to varying circumstances, however.

The names of the Delightful Children are not known, with the exception of Lenny, who is, as mentioned above, the helmet boy. Because of this, the DCFDTL are usually given varying names in fan fiction. In Operation P.O.O.L., their negative world selves are named the Little Traitor Dudes For Children's Defense.

In Operation E.L.E.C.T.I.O.N.S., they are the judges for the school's student court.

Appearance: Children who wear proper clothes and speak in a perfect, monotone unison.
Age: 10
Intelligence: Above average
Speed: Pretty fast/slow
Failed Plans: Eating their delicious cake (CAKED series, although their plans succeeded in CAKED-THREE, the KND let them eat that stinky cake! Gross!), hoarding the ice cream away for the adults (I-SCREAM), Making the KND one of them (DATE and BUTT), getting their impure taste buds on the fourth flavor (FLAVOR), homework thefts (ROBBERS, although their plans succeeded, they ended up getting detention after Mrs. Thompson looked at Numbuh 4's homework.), turning all the KND operatives into animals (GRADUATES), intercepting School Bus One (PRESIDENT), claiming Numbuh 4's nugget mine and making kids mine nuggets under the hot sun (NUGGET), getting elected as fourth grade president (ELECTIONS), framing the KND for stealing Santa's toy-making machine and claiming all the presents for their own while all the kids get coal (NAUGHTY: Christmas Special).
Weapons: Ice Cream Beast, Sir Toasty (Knightamatons), Fly Robot, Age Cigar, Really, Really Incredibly Destructive Machine (R.R.I.D.M.), Neural Suggestion Ray, The Box, Rocket Gazebo, Cake Monster, Lobster Robots, Delightfulization Chamber, Birthday Gift Robot, Robotic Fourth Grade President, Chicken Guns
Known Henchmen: Delightfuloids (their slaves), The Ice Cream Men, the Chicken Men, their cousins, the Interesting Twins from Beneath the Mountain, the Deadly Ninjas, Cree, Chad and the Teen Ninjas, the Schoolyard Bullies (Hall Monitors in E.L.E.C.T.I.O.N.S.), the Six-Gum Gang, Waffles A.K.A. Demon Devilfang (who allied with Numbuh 3 later on) and the Hall Squad
Affiliations: Themselves, their father, Mr. Boss

First appearance: Op TOMMY

The Common Cold is perpetually ill and wishes to eliminate the Kids Next Door and to spread his cold to the world. He uses a machine to fire mucus from his nose at the Kids Next Door. The Common Cold can normally be defeated with orange juice.

In "Operation: T.O.M.M.Y.: Totally Obnoxious Moronic Meddling Youngster", Numbuh Two's younger brother, Tommy, built a machine for the Common Cold to protect him from orange juice attacks and to be used against the Kids Next Door, the Flu Bug. Numbuh Two's mother used chicken soup to counter the machine.

In Op SNOWING, it is revealed that the Common Cold has a niece named Anna, who is in love with the 4th grade president.

The Common Cold is voiced by Tom Kenny.

Appearance: Man with very serious cold. Wears an ice pack and a yellow suit.
Age: 38
Intelligence: Above average
Speed: Pretty fast/slow
Failed Plans: Giving the world the worst case of the flu.
Weapons: Snotgun, Flu Bug Machine
Affiliations: Mr. Boss

First appearance: Op JEWELS

Heinrich Von Marzipan speaks with a German accent and wants to control all various sugars and sweets. He is perhaps the son of a famous chocolate maker in Germany, appearing in (among others) Op RABBIT when he kidnaps the first graders' rabbit, Mr. Flopalopagus and tries to turn him into a chocolate bunny but falls into the chocolate volcano when Numbuhs 2 and 5 stop him. Numbuh 2 does it to go eat at the cafeteria and ends up being chased by Numbuh 5 for the lamest joke ever (When Mr. Flopalopagus turns everything back to normal and a first grader said "Now do you see the wonders of MR. Flopalopagus?" and Numbuh 2 said "Yeah, but I'm so hungry, it's not even Bunny") and in Op CHOCOLATE when he comes out from the chocolate volcano and turns into a chocolate monster and blames Numbuh 5 so he tries to chocolify her, but luckily Numbuh 5 outsmarts him and he is sent to the KND Arctic Prison.

He has a feud with Numbuh 5 of the KND and loses at each encounter. Numbuh 5 often refers to him as "Hiney".

The fact that he is of German descent may be a parody of the Nazi villains of the Indiana Jones series.

He is voiced by Dee Bradley Baker

Appearance

• Regular Form: Boy with brown gloves, pants and vest, gray shirt and eyepiece.
• Pharaoh Form: Mummy with candy all over body.
• Chocolate Form: His whole body is made of chocolate!

Age: 10
Intelligence: Above average
Speed: Pretty fast in his normal form. Slow in his chocolate and pharaoh form
Failed Plans: Stealing King TwoTonsOfCandy's Treasures (JEWELS), Making chocolate bunnies from the real thing (RABBIT), Turning into a chocolate monster after eating a cheeseburger (CHOCOLATE).
Weapons: Lollipop guns, his henchmen, his transformation
Known Henchmen: Candy Bandits.
Affiliations: Himself

First appearance: Op ROBBERS (fully appeared in Op PRESIDENT and started his villain activities at the end of PRESIDENT)

James Nixon McGarfield, better known by his nickname Jimmy, is the Fourth Grade Class President-For-Life (or should I say, was) and the scourge of Gallagher Elementary. In Op. PRESIDENT, he promised the students of Gallagher Elementary he'd make school days short and no one was going to stop him! The KND relieved his bodyguards, the Hall Monitors, of their duties and took Jimmy to City Hall. The Delightful Children from Down the Lane tried to stop the KND from getting Jimmy to City Hall with the help from the Ice Cream Men, but the Ice Cream Men failed to stop Jimmy, so they sent a robot copy of the President to sabotage the negotiations. The Delightful Children's plan failed, as the KND managed to recognize and defeat the robot clone. However, as he got to City Hall, he said, in a strange monotone voice, that school days will end at 8:25 PM and more homework will be given out, thanks to Father, as it is revealed he was a willing recruit for the Delightfuls! In Op. S.N.O.W.I.N.G., during a snow day, he was upset because no one attended the assembly in which he crowns Lizzie his Queen. So he planned to capture all the kids, including the Sector V team (with the exception of a desperately ill Numbuh 1), and make them go back to school for the assembly. He turned evil for Lizzie to impress her. Lizzie was not impressed, sticking by Numbuh 1, but Jimmy used a modified Boyfriend Helmet to brainwash Lizzie into becoming his queen! The KND managed to defeat him and he and his assistant, Anna, and his army of Hall Monitors and Honor Roll Nerds were convicted by KND Global Command. Also, it is revealed, Anna disabled Jimmy's defenses, and freed Numbuhs 2, 3, 4 And 5 from their shackles, because she loves him. Jimmy was touched, and he might learn to like Anna while they're on ice, in other words-- locked up, in the KND Arctic Prison. Voiced By: Tom Kenny

Appearance: Fat boy with glasses, a coat, pants and hat (all white in ROBBERS and PRESIDENT. black in SNOWING) and black shoes.
Age: 10
Intelligence: Above average
Speed: Pretty fast
Failed Plans: Crowning Lizzie his queen.
Weapons: Bus Walkers, Modified Boyfriend Helmet, Mop (which he uses as a nightstick)
Known Henchmen: His assistant, Anna, Hall Monitors and Honor Roll Nerds
Affiliations: Delightful Children and Father, Mr. Boss

As befits the Fourth Grade President-For-Life, Jimmy's name is a combination of names of various U.S. Presidents: Jimmy Carter, Richard Nixon, and James Garfield. The "Mc" comes from President William McKinley. He also has a Texan accent similar to George W. Bush.

These are minor villains who have only appeared once or a few times.

First appearance: Op. PRESIDENT

Anna Worthington is the Fourth Grade President-for-life's assistant and she has a crush on him. She is the Common Cold's Niece and can often ask her uncle for special favors. She was first seen working with the Delightful Children in PRESIDENT, hoping to stop President Jimmy from making school days shorter at City Hall. She disabled Jimmy's defenses and freed Numbuhs 2, 3, 4 and 5 from their shackles for Jimmy and it looks like they'll be together while they're on ice at the cooler (that'd be the Arctic Base by the way!). Voiced by Andi McAfee.
Appearance: A little girl who wears glasses and brown sneakers
Age: 10
Intelligence: Very high
Speed: Above average.
Failed Plans: Intercepting School Bus 1 (PRESIDENT).
Known Henchmen: Her boss' minions
Affiliations: Her Boss, Jimmy

First appearance: Op DIAPER

Baby Jackson (voiced by Tara Strong) is a baby that can speak perfect English using other people's teeth. He and his friends/henchmen, the Ankle-Biters, were shown stealing teeth from other people, including the Sector V team, and claim the teeth for their own, so they won't need to teethe like normal babies do.
Appearance: A kid with a winter hat and baby clothes
Age: 1
Intelligence: Very high
Speed: Pretty slow when grounded, fast while using their gadgets
Failed Plans: Stealing people's teeth, so they don't have to teethe.
Weapons: Carriages, Super Insect Robot.
Affiliations: Themselves

First appearance: Op CAKED

The Big Badolescent looks like a regular small girl on the outside, but changes into a large adolescent with the letter A on her outfit when anyone offends her, a la The Incredible Hulk. Her real name is Laura Limpin, and has been shown to sell Skunky Scout candy (Op QUIET).
Appearance:

• Laura: Geeky little girl wearing glasses and has buck teeth.
• Big Badolescent: Huge girl with zits all over face and large letter A on her shirt.

Age: Probably 10
Intelligence: Pretty low
Speed: Fast (as Laura), Slow (as Big Badolescent)
Failed Plans: None
Weapons: Her transformation, her strength.
Affiliations: Mr. Boss (although she wasn't invited to the supervillain meeting in MOVIE, because the movie was rated R)

First appearance: Op MOVIE (mentioned in Op MINI-GOLF)

Not much is known about Big Brother, except that he is of very large stature, and that his head is very vulnerable (cf Op MINI-GOLF and Op MOVIE). He has only appeared briefly in his appearances. He is a play off of the idea the KND have that older siblings are evil (see Cree Lincoln for a prime example). Voiced by Daran Norris and later by John DiMaggio.
Appearance: A huge teenager with giant t-shirt and buck teeth.
Age: 16
Intelligence: Totally below average, in other words-- he's not too bright!
Speed: Somewhat slow
Failed Plans: None.
Weapons: His strength.
Affiliations: Mr. Boss

First appearance: Op DUCKY

Captain Jimmy's Mother is obsessed with getting her son, Captain Jimmy (not to be confused with President Jimmy) to take a bath. She has been chasing him for 36 years trying to accomplish this goal, using her robotic duck vessel, Moby Duck. She had almost succeeded when Tommy Gilligan climbed aboard her son's ship and persuaded him and his crew to fight back!
Note: Since Captain Jimmy's last name is revealed in the episode to be "Dirt", this makes his mother's name 'Mrs. Dirt'.
Appearance: Woman wearing bathrobe and glasses.
Age: Probably 39 or so (she probably spent many of her birthdays chasing Jimmy)
Intelligence: Pretty High
Speed: Fast (in Moby Duck), Slow (on land)
Failed Plans: Trying to force her son to take a bath
Weapons: Moby Duck
Affiliations: Probably Mr. Boss, like everyone else

First appearance: Op THE-SHOGUN

• Shogun Roquefort's Bio: Cheese Shogun Roquefort (voiced by Kevin Michael Richardson) is a lover of cheese who has built a whole empire of cheese. He kidnaps Numbuhs 2 and 4 and has forced them to work in the Cheese Mines in his palace. Numbuh 2 and Numbuh 4 managed to escape and while Numbuh 4 lead the workers to the exit, Numbuh 2 dealt with the Shogun.
  Appearance: A person wearing Japanese clothes made of cheese
  Age: 40
  Intelligence: Pretty High/Low
  Speed: Somewhat slow
  Failed Plans: Creating a cheese empire.
  Weapons: The Ninjas.
  Affiliations: Mr. Boss

• Cheese Ninjas' Bio: Not much is known about the Cheese Ninjas, however it is known that they serve the Shogun as his henchmen and force cheese-lovers to work in the cheese mines.
  Appearance: Men with ninja-themed costumes
  Age: 28
  Speed: Very fast.
  Weapons: Cheese Ninja-Stars.
  Affiliations: Roquefort, Mr. Boss

Chester's first appearance: Op CAMP (first named in Op FAST-FOOD)
Katie's only appearance: Op UTOPIA

• Chester's Bio: Chester appears to be a "jack of all trades" type of villain, all of his schemes dubious ways to make products to sell. His first appearance was in CAMP. CAMP showed him as a camp counselor brainwashing kids into making wallets and lanyards at "incredibly low prices". In FASTFOOD, he was next shown running Burger Frenzy, a fast food shop serving children to sharks as "kids' meals", and in UTOPIA, he was later shown inventing a mind control device called the "Happy Headband" and trying it out on Numbuh One, who later turned the tables on him when he found out he was being controlled by the device. In SAFARI, he disguises himself as Dr. Phineas Sharp to infect kids with Moose Bumps and he can shred their antlers to make Moose-cicles. Voiced by Tom Kenny.
  Appearance: Large person who wears a different variety of clothing.
  Age: 37
  Intelligence: Above average
  Speed: Pretty fast
  Failed Plans: Brainwashing kids into making wallets and lanyards (CAMP), Making kids as the beef (FAST-FOOD), Selling a happy headband (UTOPIA), Infecting kids with Moose Bumps and shred their antlers to make moose-cicles (SAFARI, hopefully)
  Weapons: Brainwashed children (CAMP), Food processor (FAST-FOOD), Happy Headband (UTOPIA), Moose Bump needles (SAFARI)
  Known Henchmen: The kids he brainwashed in CAMP
  Affiliations: Mr. Boss

• Katie's Bio: The girl Katie is actually a vision imagined by Numbuh One while he was a prisoner of the Happy Headband. Having been created with the utopia from the Happy Headband, she is also an unofficial "minion" of Chester. Since she was never a real character, it is unlikely that she will be seen again. Katie was voiced by Tara Strong, who also plays Numbuh 3's sister, Mushi.
  Appearance: She is brown-haired and light-skinned, and dresses like an inhabitant of Hawaii.
  Age: Probably 11
  Intelligence: High (if she would just use it!)
  Speed: Unknown
  Failed Plans: Um, keeping Numbuh One in the Utopia?
  Known Henchmen: The Imaginary Numbuhs 2, 3, 4, and 5
  Affiliations: Chester

First appearance: Op NUGGET

Bio:The Chicken Men are a bunch of fast-food workers. They were shown forcing kids to work under the hot sun, mining nuggets.
Appearance: Fast food workers who wear white shirts, dark green aprons and use chicken legs as weapons.
Intelligence: Unknown
Speed: Some fast and some slow
Failed Plans: Making kids mine nuggets under the hot sun.
Weapons: Chicken Legs.
Affilitations: Delightful Children and Father, Mr. Boss

Spankulot's first appearance: Op CANNON
Army's first appearance: Op LOCKDOWN

• Count Spankulot's Bio: Count Spankulot has been known to spank children who misbehave. The KND got him arrested by having him spank a completely innocent kid, and he subsequently reformed and allied with the KND by taking down Mr. Wink and Mr. Fibb's superchair. However, the KND did not like him living with them, so they subsequently got him sent to jail again by tricking him into spanking a judge (the one who got him arrested in the first place) and his wife (Op SPANK). It has since emerged that he can pass on the desire to spank naughty children, in other words, turning others into spank-happy vampires, by spanking someone without his gloves, like a vampire's bite (Op LOCKDOWN) and if the Count turned you into a spank-happy vampire, the cure to the curse is to spank back the Count. He is a spoof of Dracula. Voiced by Daran Norris.
  Appearance: Is tall and lanky, wears white gloves, a purple cape and costume similar to Dracula, a medallion with the letter S on it, has cartoonishly long eyebrows that hang off of his forehead, has slick black hair, and speaks with a heavy transylvanian accent.

• Spank-Happy Vampire Army's Bio: The Spank-Happy Vampire army are basically, children who were transformed into vampires by the count and they also serve the count as his henchmen. The only children that were seen as vampires were Numbuhs 1, 2, 3 and 4

Age: Super-old (they're vampires! why?)
Intelligence: Above average
Speed: Above average
Failed Plans: None, well except for the part where the army tried to spank Numbuh 5 for using the Quadruple Emergency Bypass Code.
Weapons: Hands for spanking
Affiliations: Mr. Boss

First appearance: Op. CATS

The Crazy Old Cat Lady lives with literally millions of cats, who she calls "her babies." Whenever one of her babies is catnapped, the cats band themselves together to form the big cat monster their owner uses as a weapon against the Kids Next Door in Op. CATS. This conglomeration may be a reference to Huff N. Puff, the boss of Chapter 6 in the Nintendo 64 video game Paper Mario in that taking hits from Numbuh 3's toys causes pieces of the monster to separate and become independent mini-monsters. Offended in FLUSH when Toilenator (thinking that she's Numbuh Two in disguise) calls her "portly." Was beaten in FISHY by Numbuhs 2 and 4 to a giant drain after Numbuh 3's pet goldfish went belly-up. Voiced by Grey Delisle.
Appearance: Has a cat-like appearance, hisses, wears a light-blue night gown, wears slippers, has abnormaly long claws, controls cats, and seems to be in her mid 60's.
Age: 65
Intelligence: Above average
Speed: Pretty fast (on land) and slow (as the Cat Monster)
Failed Plans: keeping Numbuh 4 as her cat (CATS), helping Mr. Boss take over the Sector V Treehouse (FLUSH), obtaining a dead fish (FISHY).
Weapons: Cat Monster
Known Henchmen: Cats, and lots of them.
Affiliations: Mr. Boss

Cree's first appearance: Op SUPPORT
Chad's first appearance: Op CHAD (started his villain activities in END)
Teen Ninjas' first appearance: Op LEADER

Cree's Bio: Cree Lincoln (voiced by Cree Summer) is a former KND operative (Numbuh 11) and Numbuh Five's teenage sister. She once was (and still is) adept at technology and martial arts, having taught Numbuh 5 everything she knew before she left. She works for Father. Numbuh Two has had a crush on her. She is obviously named after her voice actress, possibly in her honor.
Appearance: Normally, a teenage girl wearing pink shirt and jeans and not normally, wears red suit and Battle Ready Armor.
Age: Around 15
Intelligence: Above average
Speed: Pretty fast
Failed Plans: Sending the Moonbase crashing into the Sun (Chad already did that in END), scramblifying Bradley's brain (HOSPITAL), sending kids into a whirlpool to nowhere (SITTER, Hopefully, as it is a dream sequence), infecting kids with Chickenpox (MAURICE).
Weapons: B.R.A., Chickenpox Gun/Cannon, Speedy Recovery Rainbow Monkey.
Known Supporters: Numbuh 12

Chad's Bio: Chad Dickson (voiced by Jason Harris) was once KND operative Numbuh 274. After Numbuh 1 revealed to the decommissioning team that he was turning 13, he started hanging out with Cree after he escaped his decommissioning. In LEADER, it is revealed he's the quarterback for the football team called the Jets. In ELECTIONS, it is revealed his last name is Dickson and he goes to Hendry Middle School.
Appearance: Teenage boy wearing football jersey and Battle Ready Armor.
Age: 13
Intelligence: Above average
Speed: Pretty fast
Failed Plans: Sending the Moonbase crashing into the Sun (END), invading the KND Moonbase (LEADER), keeping the operatives distracted (SLUMBER), taking over Gallagher Elementary (ELECTIONS).
Weapons: Footbomb, B.R.A.
Known Supporters: Numbuh 12

Teen Ninjas' Bio: The Teen Ninjas, otherwise known as The Jets, like Cree and Chad, despise children so much, they try many ways to get rid of them, or torture them and they come up with a lot of nefarious schemes against the KND. Their main weapon is Battle Ready Armor, B.R.A. for short and they usually speak in teen slang, with words like "dude!" and "totally!".
Appearance: Teenagers wearing football jerseys or red suits and Battle Ready Armor.
Age: Around either 13, 14 or 15
Intelligence: Somewhat above average and not that bright
Speed: Pretty fast/slow
Failed Plans: Invading the KND Moonbase (LEADER), sending kids into a whirlpool to nowhere (SITTER, Hopefully, as it is a dream sequence), infecting kids with Chickenpox (MAURICE), taking over Gallagher Elementary (ELECTIONS).
Weapons: Footbomb, B.R.A., Chickenpox Gun/Cannon, Speedy Recovery Rainbow Monkey
Known Supporters: Numbuh 12

Affiliations: Delightful Children and Father, Mr. Boss

First appearance: Op UNDERCOVER

Cuppa Joe owns a coffee drilling rig located somewhere in the ocean. He is shown moving very quickly after drinking WAY too much coffee, because he is a coffee addict. He can easily be defeated when he gets hyped up on mocha. Seems to be very similar to Mr. Fizz, as they are both caffeine addicts, but unlike Fizz, he has no control over his addiction. Voiced by: Tom Kenny
Appearance: Is very jittery, wears a white cowboy hat and suit, has a brown skin tone.
Age: Around 30
Intelligence: Above average
Speed: Too fast!!!
Failed Plans: Unknown
Weapons: Coffee
Known Henchmen: Coffee Drill Workers.
Affiliations: Mr. Boss

The henchmen for the Delightful Children from Down the Lane and Father. They consist of: The Interesting Twins from Beneath the Mountain, the Six-Gum Gang, Cree Lincoln, Chad Dickson and the Teen Ninjas, the Ice Cream Men, the Chicken Men and willing recruit James Nixon McGarfield aka President Jimmy and his assistant and minions Their affiliation: Mr. Boss

• Children Henchmen
  • Anna Worthington
  • Hall Monitors
  • Honor Roll
  • Interesting Twins from Beneath the Mountain
  • Six-Gum Gang

• Teenager Henchmen
  • Cree
  • Chad
  • Teen Ninjas (AKA the Jets)

• Adult Henchmen
  • Ice Cream Men
  • Chicken Men

First appearance: Op POOL

The Destructively Nefarious Kids (DNK for short) are the opposite counterparts of the KND. They despise children so much, they force them to work in the negative universe while the adults do kid things and the kids in the positive world are free. The organization is made up of Numbuh 1's evil counterpart, Negative Numbuh 1, is weak, timid and always being pushed around by others (including his aggressive ex-girlfriend Eizzil), Numbuh 2's evil counterpart Negative Numbuh 2, is not very bright and is good at telling jokes, Negative Numbuh 3, the evil counterpart of Numbuh 3, is extremely mean, Numbuh 4's evil counterpart Negative Numbuh 4, is the supreme leader of the DNK, and is a genius and a coward, Negative Numbuh 5, the evil counterpart of Numbuh 5, is a nerd and laughs like a dork and Negative Numbuh 86, the evil counterpart of Numbuh 86, is kind and helpful. There is also Eizzil Enived, the evil counterpart of Lizzie Devine, is cruel and overbearing. After the KND and Lizzie defeat Negative Numbuh 4 and send him to the Broccoli Mines, the DNK operatives are going to make their world a better place for everyone. All members are voiced by the same voice actors as their opposite counterparts.
Appearance: The same appearances the positive counterparts have, only Negative Numbuh 4 has a goatee (Negative Numbuh 4 claims the goatee makes him look more eviller).
Age: Around 9, 10 or 11
Intelligence: Above average, some aren't that smart.
Speed: Unknown
Failed Plans: Conquering the positive and negative worlds
Weapons: SPLATTLE
Affiliations: Themselves

First appearance: Op DODGEBALL

The Dodgeball Wizard is out to prove that adults can play dodgeball. Hoping to become the greatest dodgeball player ever, he kidnaps Numbuh 4's mom, dad and little brother and challenges Numbuh 4 to a dodgeball match. After knocking Numbuh 4 out, Joey steps in and wins the match for Numbuh 4.
Appearance: Elderly gentleman wearing wizard's outfit.
Age: 59
Intelligence: Above average
Speed: Unknown
Failed Plans: Proving to the world adults can play dodgeball
Weapons: His spells
Affiliations: Possibly Mr. Boss

First Appearance: Christmas Special Operation NAUGHTY

Edna Jucation is the representative for "Substitute Teacher Day". She is working for the Delightful Children from Down the Lane to eliminate christmas and add "Substitute Teacher Day" to the calendar, but they had to get by KND and Elfa Strike first. She is voiced by Candi Milo
Appearance: Woman with blue and red dress and red mask and cape.
Age: 46
Intelligence: Pretty high (She's a substitute teacher)
Speed: Pretty fast or slow
Failed Plans: Eliminating Christmas
Weapons: School Supplies
Affiliations: Delightful Children and Father, Mr. Boss

The Substitute Teachers that work for Edna Jucation are:

• Thesaurus Rex
• The Unintelligable Tutor
• The Human Text
• Mr. Physically Fitastic

First appearance: Op MATADOR

Ernie (short for Ernest) runs a sport called the Bully Fights. The Bully Fights are an organized sport in which he and his henchmen/friends, the Bullies use adults as the bulls, first getting the adults hyped up on coffee. Numbuh 4 competed in this sport as the matador, which upset the team, including Numbuh 3. Numbuh 4 should know his KND duties come first. While the rest of the team was out battling the sinister Soccer Mom, Numbuh 4 competed in the Bully Fights and discovered he was going to fight his dad! Numbuh 4 snapped him out of it, left the stadium, rioted and freed the other captured adults who signed up for this so-called "How to Be a Better Dad" seminar. Ernie makes his second appearance in BREAKUP as the commissioner of the game "Vaseball", a game where kids steal glass and pottery from other peoples' homes and use them as baseballs, so kids would get grounded and Ernie and his henchmen can vandalize everyone's homes with eggs and toilet paper. Numbuh 4 competed in that sport to get back his mom's priceless vase and ensure it is in perfect condition, otherwise, he'll get grounded, or worse: his mom will make him take up ballet! Anyways, Ernie is still plotting revenge on Numbuh 4 for ruining his Bully Fight operation. Some of his friends were seen as Hall Monitors in ELECTIONS. Voiced by Dave Wittenberg
Appearance: Kid with brown vest and hat and white t-shirt.
Age: 12
Intelligence: Pretty high, but can't be too bright at times
Speed: Pretty fast or slow
Failed Plans: Running the Bully Fights (MATADOR), Getting the kids playing Vaseball grounded (BREAKUP, although his plans succeeded, he ended up getting grounded himself)
Weapons: None
Affiliations: Himself, and Mr. Boss

First appearance: Op NO-POWUH

Gramma Stuffum (voiced by Grey DeLisle in Op NO-POWUH and Op FOOD-FITE, Jennifer Hale in Op MOVIE) is known not only to cook massive quantities of food to fatten up children, her food is actually known to come to life, and actively try to stuff itself down its victims' throats. Her cronies are Liver (voice of Tom Kenny) and Onions (all the two Onions do is stand around and giggle). In Op FOOD-FITE, it is revealed she is Gallagher Elementary's cafeteria lady and the songs she sang while force feeding the KND were actually rewritten songs originally by a very adult band named GWAR. Numbuh Two seems to be immune to her food at times.
Appearance: Huge elderly woman with grey hair and pink slippers.
Age: 69
Intelligence: Above average
Speed: Pretty slow
Failed Plans: Fattening up children
Weapons: Good, yucky, healthy foods.
Known Henchmen: liver onions and other food minions.
Affiliations: Mr. Boss

First appearance: Op MINI-GOLF

The Great Lenny Puttinski, otherwise known as Rupert Putkin (voiced by Rob Paulsen), used to be a world champion at mini golf, replete with his own brand of golf ball, until Numbuh Two beat him, repeatedly said to him "It's just a game," and even called the sport dumb. He has built a mini golf course in his basement, comprised with various landmarks like the Pyramids, the Taj Mahal and the Golden Gate Bridge, shrunk with a shrink ray.

Although at the end of Op MINI-GOLF he was rendered huge with the shrink ray, he was shown to be of regular size in Ops MOVIE and AFLOAT. Then again, Numbuh Two himself ended the story golf ball-sized.
Appearance: Man wearing scottish pants and uses a golf trophy for a hat
Age: 45
Intelligence: Above average
Speed: Unknown
Failed Plans: Making the universe his own golf course
Weapons: Golf balls, Smallifying/Bigifying Ray
Affiliations: Mr. Boss

First appearance: Op I-SCREAM

The Ice Cream Men only serve ice cream to responsible adults, never kids. They have been shown with ice-cream-themed weaponry. In GROW-UP, it is revealed these guys work at the Tasty-Taste Ice Cream Factory, according to Numbuh 1 after he was turned into an adult and worked for them. Some of these guys were named in MACARRONI.
Appearance:

• Lesser Versions: Men wearing white uniforms and hats.
• Elite Versions: Men wearing ice-cream themed costumes. (Shown in Ops. TRAINING and PRESIDENT)

Intelligence: Unknown
Speed: Some fast and some slow
Failed Plans: Hoarding the ice cream away (I-SCREAM: Lesser), getting their impure taste buds on the fourth flavor (FLAVOR: Lesser), conquering the ice cream parlor (LEADER: Lesser), getting their hands on the KND Code Module (TRAINING: Elite), Intercepting School Bus One (PRESIDENT: Lesser and Elite)
Weapons: Their trucks, cream, sprinkle and peanut guns.
Affiliations: Delightful Children and Father, Mr. Boss

First appearance: Op TRIP

Bio: The Interesting Twins from Beneath the Mountain, also known as the Interesting Twins or the ITFBTM, are a pair of Japanese twins. Like the DCFDTL, they talk in monotone, though not always in unison. They were charged by Father to follow Numbuh Three to the hideout of the Japanese Kids Next Door, but they were tortured by numerous random events along the way. After they discovered that Numbuh 3 had led them to a trap, they leapt out of the window of her "grandma's" house, where the Japanese KND found them and beat them up. Tom Kenny does the voice of the brother and Tara Strong does the voice of the sister.
Appearance: Two children who wear the same clothes the Delightful Children wear, only they're identical.
Age: Both are 10
Intelligence: Above average
Speed: Pretty fast
Failed Plans: Entrapping the Japanese KND
Weapons: None, but some say their vehicle that was destroyed by a truck.
Known Henchmen: Deadly Ninjas.
Affiliations: Delightful Children and Father

First appearance: Op BEACH

• Sandy's Bio: King Sandy (voiced by James Arnold Taylor) is a kid who thinks he's a king. He comes up with a lot of ways to win Numbuh 3's (she's the princess) love and if there's one thing he hates, it's wedding crashers like the KND! In Op. KASTLE, he fell in love with Numbuh 3's sister, Mushi.
  Appearance: Kid wearing a bucket on his head, namely his crown.
  Age: 10
  Intelligence: Above average
  Speed: Pretty fast
  Failed Plans: Making Numbuh 3 his queen
  Weapons: Shovels (used as swords)
  Affiliations: Himself

• Knights' Bio: The Knights of the Round Towel (basically, parodies of the Knights of the Round Table) serve King Sandy as his minions. They are also Sandy's cousins.
  Appearance: 3 Teenagers with knight-themed costumes made out of seashells, old heat radiators, old lifesavers, etc.
  Age: 14
  Intelligence: Not too bright
  Speed: Pretty fast
  Failed Plans: Whatever their cousin is planning.
  Weapons: Beach umbrellas (used as swords)
  Affiliations: Their cousin, Sandy

First appearance: Op TEETH

Knightbrace runs around and cleans kids' teeth at night. He wears a halo brace similar to that of Jimmy's in Ed, Edd and Eddy. Later revealed to be the owner of the operatives' favorite candy shop "Jelly's Candies", which is near the office of dentist Dr. Sigmund Teeth (shop owner Mr. Jelly had been kicked out of dental school for putting braces on babies). His recounting of his transformation into Knightbrace, and the nickname "Enamel Avenger", are an obvious take on Batman. Voiced by Tom Kenny.
Appearance:

• Mr. Jelly: Has a mustache, wears glasses, a shopkeeper apron and candy-themed clothes.
• Knightbrace: Wears dark-blue suit, a brace, and uses dentists' equipment as weapons.

Age: 39
Intelligence: Above average
Speed: Pretty fast
Failed Plans: Taking over the KND treehouse (FLUSH), destroying the Rainbow Munchies because of his obsession with dental hygiene (MUNCHIES).
Weapons: Dentists' equipment.
Affiliations: Mr. Boss

First appearance: Op FUTURE

Madam Margaret is merely a little girl who's disguised herself as an adult using a robot suit. She is the evil headmistress of St. Rita's Preparatory School, which is a boarding school for girls. She kidnaps Numbuh 4 and forces him to attend the prep school against his will. With the help from her future self, she plans to make the world a better place by turning all boys into girls. 75 years later, she had built a Supergirlifier Cannon to turn anything feminine, even the most macho of things, which includes boys in general. Sally Sanban, Numbuh 3's granddaughter helped Numbuh 4's future self infiltrate Margaret's castle while the Boys Next Door (The next KND generation) kept her army, the Girl Squad, distracted. Future Numbuh 4 used Margaret's time machine to travel to the present and tip the Sector V team off about Madam Margaret's scheme and rescue Numbuh 4. Numbuh 3 saves the day with H.I.P.P.I.E.-H.O.P., destroying Margaret's castle in the process. Now Margaret's locked up in the KND Arctic Prison. Voiced by: Candi Milo
Appearance:

• Present: Little girl wearing robot suit to pretend she's an adult.
• 75 years later: Elderly woman wearing pink outfit and cape and holds a scepter with a heart on it.

Age:

• Present: 10
• 75 years later: 85

Intelligence: Above average
Speed: Slow (robot and elder), and fast (on land)
Failed Plans: Making the globe a boy-free utopia.
Weapons: Girlifying rifles, Supergirlifier Cannon.
Known Henchmen: The Girl Squad.
Affiliations: Herself

First appearance: Op CHAD

Mega Mom and Destructo Dad are two adults with really huge costume heads, who kept attacking KND operatives worldwide by "stupifying" them. Later revealed to be Chad's parents, concerned at his high agent number (274). Grey Delisle provides the voice of Mega Mom and Jeff Bennett does the voice of Destructo Dad.

Appearance: Man and woman wearing work clothes and huge head masks.
Age: 40
Intelligence: Above average
Speed: Pretty slow/fast
Failed Plans: Stupifying every last KND operative so their son can be the best of them all.
Weapons: Stupification Gloves.
Affiliations: Mr. Boss

First appearance: Op ZOO

Miss Goodwall (voice of Candi Milo), whose name is an obvious take on wildlife conservationist Jane Goodall, is an old lady with horns and a tail, who has been known to keep lots of kids at her zoo. She captured the KND and the Delightfuls and put them in cages; however, they foiled her plan by (reluctantly) working together (though the DCFDTL betrayed the KND to Miss Goodwall). She later got a taste of her own medicine when she was put in a pit with a bully.
Appearance: Elderly woman wearing black suit and tie and has a buffalo's tail and white hair.
Age: 68
Intelligence: Above average
Speed: Pretty slow/fast
Failed Plans: Making kids the main attraction at her zoo.
Weapons: Tranquilizer Darts.
Known Henchmen: Zookeepers.
Affiliations: Delightful Children and Father (when the Delightful Kids tipped her off about the KND's plans to escape from her zoo), Mr. Boss

Only appearance: Op CABLE-TV

Mr. B (voice of Dee Bradley Baker) was shown running the Kid-Tacular kids channel, whose schedule is apparently overrun with Rainbow Monkeys. He had the figure of an infant (replete with a diaper), except with a "cigar" in his mouth. He gave the KND their own TV show, just so he could get access to their global satellite web in an attempt to turn everyone into babies using his "cigar", (A debate most mothers have with the show, as he constantly has it in his mouth,) which was actually a device to make adults into babies.

After he ended up being turned into a baby himself, the DCFDTL got hold of the "cigar" and later used it to turn Numbuh One into an adult in Op GROW-UP.
Appearance: Infant-like person with a blue suit and diaper (I Think).
Age: 40
Intelligence: Above average
Speed: Pretty slow/fast
Failed Plans: Turning everyone into babies.
Weapons: Age Cigar and Homeworko
Known Henchmen: Homeworko the Robot
Affiliations: Unknown

First appearance: Op OFFICE

Mr. Boss has been shown as the boss at the office Numbuh Four's dad and Numbuh Three's and Numbuh Two's moms all work at (Op OFFICE), scheming to send a bunch of girls to Pluto (and Three had to coax Four into actually doing something about it) in order for his workers to pay attention to his company. Because of his money and power, he is seen as a leader of the adult villians (with the exception to Father). Also organizes meetings of villains (as seen in Op MOVIE and other later eps). Voiced By: Jeff Bennett
Appearance: Man with brown hair and mustache and wears blue executive clothes
Age: 40
Intelligence: Above average
Speed: Pretty slow/fast
Failed Plans: Sending the girls to Pluto (OFFICE), Taking over the KND treehouse (FLUSH), Swiping the "Rainbow Monkey Lisa" (MACARRONI)
Weapons: Rocket Roof
Known Henchmen: His technicians from OFFICE and every other villain on this list because that's why he is called Mr. Boss!
Affiliations: Himself

First appearance: Op POP

Mr. Fizz was shown as the leader of an anti-juvenile task force which banned kids from drinking soda (a la the Prohibition), and put disobeying kids in bottles. The KND defeated him and Numbuh 2 forced him to release the kids he bottled. In the comic "Operation: SODA (Skillful Operative's Delivery Attempt)", Fizz was trying to stop Numbuhs 2 and 4 from delivering the soda to Lime Ricky's bar, but had no luck. He was also shown with barrels of soda on his arms and feet, shooting soda at KND operatives. Mr. Fizz is in a lot of ways like Cuppa Joe, but unlike him, can control his otherwise great craving for caffeine. (It's unclear whether Mr. Fizz escaped at the end of Op, POP, as he is later seen in the grocery store trying to get his hands on "Rainbow Munchies." Voiced by Jeff Bennett.
Appearance: Man with thick black hair and mustache and wears white clothes.
Age: 45
Intelligence: Above average
Speed: Pretty slow (Soda Keg Body Armor) fast (Land)
Failed Plans: Bottling up kids who drink soda (POP), Intercepting the BOOSTLEGGER (Operation: SODA comic)
Weapons: Soda-Keg Body Armor, De-Soda-Ization Module
Known Henchmen: Soda Control Cops
Affiliations: Mr. Boss

First appearance: Op RAINBOWS

Mr. Mogul and his assistant Simon are the creators of the Rainbow Monkeys juggernaut, and Mogul is the head of the company that makes the dolls. Kidnapped Three and tricked her into leading him to a bunch of them by telling her he was giving them a residual check. Never mentioned his actual motive at anything higher than a whisper, but was shown locking the monkeys in cages. Mr. Mogul is voiced by Rob Paulsen and Simon is voiced By Tom Kane.
Mogul's appearance: Bald person with short mustache.
Simon's appearance: Person with blue clothes and short mustache.
Mogul's Age: 45
Simon's age: 48
Intelligence: Above average
Speed: Pretty slow/fast
Failed Plans: Selling real Rainbow Monkeys
Weapons: Rainbow Monkey Plane
Affiliations: Mr. Boss

First appearance: Op DOGFIGHT

Mr. Washer is the owner of the hobby shop Numbuh 2 usually goes to to buy items for new 2x4 technology. He was so fed up with his countertop getting dirty that he pitted Numbuh 2 and "The Kid" (Carlos Alazraqui), both major consumers of the chili dogs that stained his counter, against each other, until they got shot down, so that no one was going to stop him from destroying the Chili Dog Factory. Instead, the two fixed up a new plane from their planes' remains, and used Washer's plane to take out his hobby shop. Voiced by: Rob Paulsen.
Appearance: Elderly man with white hair.
Age: Around 60
Intelligence: Above average
Speed: Pretty fast
Failed Plans: Destroying the Chili-Dog factory
Weapons: Flying Fortress
Affiliations: Possibly Mr. Boss, sort of.

First appearance: No P in the OOL

Mr. Wink and Mr. Fibb (Tom Kenny As Mr. Wink and Dee Bradley Baker As Mr. Fibb, respectively) are two adults who have mostly been shown fighting the KND in souped-up chairs. In Op COWGIRL, their first names were revealed (John and Timothy, respectively), and they were also revealed to be former members of "The Cowboy Kids Club", which also fights adults. Wink is the one with the horns, and Fibb is the one with the bald head (he lost his hair when he was 14).

They are a parody of the henchmen Mr. Wint & Mr. Kidd from the 1971 James Bond movie Diamonds Are Forever.
Mr. Wink's Appearance: A man with buffalo horns.
Mr. Fibb's Appearance: A man with walrus teeth and abnormaly long hands.
Age: 42
Intelligence: Very high
Speed: Pretty fast/slow
Failed Plans: Extending the adult swim (No P in the Ool), Destroying playgrounds (SPANK), Holding a Barbeque for the other villains (AFLOAT), Taking over the KND treehouse (FLUSH).
Weapons: Superchairs, The Dome.
Affiliations: Mr. Boss

First appearance: Op UNCOOL

By day, they are nerds, the same kind that collect cards and read books. But if one of their cards goes missing, these nerds become Nerd Zombies and go in search of the card thief. They menaced Numbuh 2 and Numbuh 42 in "Op U.N.C.O.O.L." trying to get their card back, and a frightened Numbuh 42 gave it back. But once the nerds get their card back, one of them admits to having another cool, rare card that he got off someone else....
Appearance: Just your everyday nerds by day, and zombies by night.
Age: 13
Intelligence: High (they are Nerd Zombies after all)
Speed: Pretty slow (they are Nerd Zombies after all)
Failed Plans: None
Weapons: Their knowledge, and transformation into Zombies
Affiliations: Themselves, and their cards (?)

First appearance: Op PINKEYE

Nurse Claiborne is the school nurse of Gallagher Elementary. She has made a million dollars in bake sales with her Apple Crumbles. The secret ingredient to her crumbles is eye crust, in which she infectucates (another way to pronounce/spell infected in KND) kids with pinkeye. the kids who get infected are brought to her office and the nurse uses everyone's illness as her secret recipe. The ending of that same episode seems to imply that she uses mucus for the filling, too.
Appearance: Woman with doctor's clothes and a green cape.
Age: 38
Intelligence: Above average
Speed: Pretty fast/slow
Failed Plans: Making everyone's pinkeye problems and mucus the secret ingredient to her crumbles.
Weapons: Pinkeye Water Balloon
Known Henchmen: Hall Monitor Joe Balooka
Affiliations: Probably Mr. Boss

First appearance: Op NO-POWUH

Otherwise known as PTOOEY, the Parent Teacher Organization of Eradicating Youngsters consists of teachers and other adults who attack children who do badly at school, like the KND.

Members include:

• Mad Dad (voiced by Jeff Bennett): Appearance: Mad adult wearing undershirt and underpants.
• Midwestern Mom, (voiced by Grey DeLisle): Appearance: Mad adult wearing dress and holds a purse.
• Principal (the leader (voiced by: Tom Kenny)) Appearance: Wears a principal's outfit and wears a cape and can fly.
• Terrible Tutor: Wears a graduation robe and uses textbooks as weapons.
• Heli-Teacher: Appearance: Wears a green dress and flies around in a helicopter chair.

Intelligence: Above average
Speed: Pretty fast/slow
Failed Plans: Attacking the KND for doing a horrible job at school
Weapons: Report Cards, Books, Helicopter Chairs and Handbags.
Affiliations: Mr. Boss

Hall Squad's first appearance: Op PRESIDENT (did their villain activities in SNOWING)
Honor Roll's first appearance: Op SNOWING

These guys serve 4th Grade President-for-life Jimmy Nixon McGarfield and his assistant Anna as their minions. These guys also work for the Delightful Children (see top), because President Jimmy is a willing recruit for the Delightfuls.

• Hall Squad's Bio: The Hall Squad, also called the Hall Monitors, are parodies of the secret service agents (notice their uniforms?). These guys are Jimmy's bodyguards. As seen in Op. S.N.O.W.I.N.G., they were based on the Storm and Snow Troopers from Star Wars when they were controlling the Bus Walkers. These guys only obey the fourth grade president. In Operation: PINKEYE, we learn Numbuh 2 was once a Hall Monitor and the only Hall Monitor that was an ally to the KND was Joe Balooka.
  Appearance: A bunch of boys and girls wearing black uniforms with badges and sunglasses who use rulers as nightsticks, but when these guys were controlling the Bus Walkers, they were dressed as the Storm and Snow Troopers.
  Speed: Pretty fast
  Failed Plans: Whatever their boss, Jimmy is planning, for example stopping the KND from ruining Jimmy's plans crown Lizzie his queen.
  Weapons: Bus Walkers, Rulers (which they use as nightsticks).
  Affiliations: The Delightfuls, Mr. Boss and their leader, Jimmy.
  Known Members
  • Numbuh 2 (Quit the force to join the KND)
  • Joe Balooka
  • Six-Gum Gang

• Honor Roll's Bio: Basically, the Honor Roll are nerds covered in books. They are based on the Trade Federation's droidekas aka the Destroyer Droids from the Star Wars series.
  Intelligence: Above average
  Speed: Pretty fast
  Failed Plans: Whatever their boss, Jimmy is planning.
  Weapons: Books.
  Affiliations: The Delightfuls, Mr. Boss and their leader, Jimmy.

First appearance: Op ARCTIC

Professor Bob, who is either Professor XXXL's brother, or friend, lives in the Arctic and plans to end snow days in all schools. Briefly voiced by: Dee Bradley Baker.
Appearances: Wears a lab coat with his name on it.
Age: 40
Intelligence: Very high
Speed: Pretty fast/slow
Failed Plans: Ending snow days
Weapons: Weather control device.
Affiliations: Mr. Boss

First appearance: Diseasy Does It! aka Chimp N. Pox
First appearance in a KND story: Op ARCTIC

Professor Triple-Extra Large, otherwise known as Professor XXXL, is a rather large villain who is always mutated from animals. He makes his first appearance in the non-KND episode "Kenny and the Chimp", where he had a lobster claw for a left arm. In his first actual appearance, Op ARCTIC, he wears a turtle shell on his back, and was supposedly making a machine to eliminate snow days; after Numbuh 30c betrayed the KND, it was revealed that Triple-Extra Large was trying to invent the perfect snowcone.

Triple-Extra Large was then seen in Op COLLEGE, with octupus tentacles for legs, feeding Numbuh One snowcones (claiming he suffered from brain freezes, so he needed Nigel, immune from brain freezes, to test his 'cones), the last one of which was perfect, according to Numbuh 1 himself at the end of the episode... while he was lamenting the stupidity of his teammates in extricating him from XXXL's university lab and totalling his research while doing so. (Some have criticized this particular moment as being a major continuity lapse, especially considering how much the show relies on continuity, since they were all there in Op ARCTIC when his research was first revealed.) Voiced by: Frank Welker
Appearances: Wears a lab coat and is constantly being mutated from animals.

• Diseasy Does It: Has a lobster claw for a left arm.
• Op. ARCTIC: Has a turtle's shell for a back.
• Op. COLLEGE: Has octopus tentacles for legs.
• Op. MUNCHIES: Has a snail's hollow for a back and legs.

Age: 56
Intelligence: Very high
Speed: Pretty fast/slow
Failed Plans: Unknown
Weapons: Deadly Diseases, Minestrone Missiles, Laboratortise, Octo-Bot, His wacko mutations.
Known Supporters: Numbuh 30c
Affiliations: Unknown

First appearance: Op CANNON

The Proper Patrol are two people dressed like army soldiers who basically turn ill-behaved and ill-dressed children into more proper looking children. The only members introduced are Major Mrs. Manners (Jennifer Hale) and Sergeant Sensible (Daran Norris).
Appearance: People wearing army fatigues and fly around with Properization Devices.
Speed: Pretty fast, when they fly
Failed Plans: Unknown
Weapons: Properization Rays.
Affilitations: Mr. Boss

First appearance: Op HUGS

The Rainbow Monkey Cult is a group, essentially an army, of girls wearing Rainbow Monkey-themed costumes who kidnap Numbuh 4 and sacrifice him to the giant Rainbow Monkey when Numbuh 4 refused to give anyone a Friendly-Friend Rainbow Monkey Goodbye Hug.
Appearance: Girls wearing Rainbow Monkey-themed outfits.
Intelligence: Above average
Speed: Pretty fast
Failed Plans: Unknown
Weapons: Giant Rainbow Monkey.
Affiliations: Themselves.

First appearance: Op LUNCH

A parody of Robin Hood, Robin Food, with help from his Hungry Men, steals food from the young and gives it to the old. Lizzie, outraged at Robin Food ruining her romantic lunch with Numbuh One, uses the KND LOCKAHSOCKAH to storm the Sure Would Forest Senior Center to retrieve her lunch. Just before Lizzie can surrender, the Senior Citizen Squad tells Lizzie that Robin Food has been serving them food. Lizzie is touched at Robin Food's kindness, until the SCS reveals that they wanted to eat old people food instead of children's food. Lizzie gets her lunch back and the SCS gives Robin Food such a beating! He is voiced by Rob Paulsen.
Appearance: An englishman wearing Robin Hood-themed clothes, only he has a chicken leg attached to his cap.
Intelligence: Above average
Speed: Pretty fast
Failed Plans: Spoiling Numbuh 1 and Lizzie's romantic luncheon
Weapons: Crossbows, Bags.
Affiliations: Probably Mr. Boss

First appearance: Op TAPIOCA

The Senior Citizen Squad was shown hijacking a truck of tapioca pudding. When they later attacked the KND treehouse, which had been soaked with the pudding after the truck crashed into it, one of the SCS was revealed to be Numbuh Two's grandma Lydia. Although they consist of old people, they look young because of anti-aging creme. They also have their own mecha called Senior Citizen, but it seems that they only transform in their older state.
Intelligence: Above average
Speed: Pretty fast (as teens), Slow (as elders)
Failed Plans: Hijacking the Tapioca Pudding Truck.
Weapons: Gentitron (wheelchair), Capilator (walker), Grandmachine (cane), Senior Citizen.
Affiliations: Mr. Boss

Members include:

• Lydia (voiced by Candi Milo)
  • Age: 79
  • Appearance:
    • As elder: Elederly woman wearing nightgown and has a crazy attitude.
    • As teenager: Teenage girl wearing ninja outfit with mask and uses a Grandmachine/cane as a weapon.
• Maurice (voiced by Dee Bradley Baker).
  • Age: 81
  • Appearance:
    • As elder: Elderly man wearing bathrobe.
    • As teenager: Teenage boy wearing ninja outfit with mask and uses a Gentitron/wheelchair as a weapon.
• Sheldon (voiced by Tom Kenny). Age: 79
  • Age: 79
  • Appearance:
    • As elder: Elderly man wearing street clothes.
    • As teenager: Teenage boy wearing ninja outfit with mask and uses a Capilator/walker as a weapon.

First appearance: Op ROBBERS

Bio: The Six-Gum Gang are a gang of cowboy kids. In ROBBERS, they were shown staging hold-ups on school buses, robbing kids of their homework. They make their second appearance in ELECTIONS were they act as Hall Monitors for the Delightful Children, as the Delightful Children get elected as fourth grade president(s) of Gallagher Elementary. Names, according to credits, are: Dixie (voiced by Jennifer Hale), Runt (also Jennifer Hale), Wilbur (voiced by Benjamin Diskin), Lunk (voiced by Dee Bradley Baker), and Goof (voiced by Tom Kenny).
Appearance: Four boys and a girl wearing cowboy clothes.
Age: They're all 10
Intelligence: Above average, except Lunk and Goof.
Speed: Pretty fast
Failed Plans: Taking over Gallagher Elementary.
Weapons: Gum Guns.
Affiliations: Delightful Children and Father

Soccer Mom's first appearance: Op MATADOR
Soccer Dad's first appearance: Op ARCHIVE

• Soccer Mom's Bio: Soccer Mom is an evil soccer coach who wants kids to practice soccer 24/7. She was defeated after Numbuh 4 freed the captured adults from the bully fights. Voiced by: Grey DeLisle

• Soccer Dad's Bio: Soccer Dad is basically, Soccer Mom's husband. He was first seen in Op. ARCHIVE while Numbuh 1 was reading his report to the class.

Appearances: People with sweat pants and sweater
Age: 40
Intelligence: Anything soccer-related
Speed: Pretty fast/slow
Failed Plans: Making kids practice soccer 24/7.
Weapons: Soccer Balls.
Affiliations: Mr. Boss

First appearance: Op PIRATE

• Stickybeard's Bio: Stickybeard (voice of Star Wars actor Mark Hamill) is a pirate who sailed around the city in his ship Sweet Revenge with his army of Candy Pirates, stealing candy from children, including Numbuh Five's stash. Even his beard is laden with candy (thus the name). He also shows some respect for Numbuh Five as well. He has proven himself to be not such a bad guy after all, as he saved the Sector V operatives from a Moby Dick-esque asparagus monster in Op AFLOAT. He has two cabin boys named Chewy and Gooey
  Appearance: Pirate with rotten teeth and has candy all over his beard.
  Age: 58
  Intelligence: Above average
  Speed: Pretty fast/slow
  Failed Plans: Stealing the KND's candy and kidnapping Numbuh 5 (PIRATE), Stealing candy from trick-or-treaters (TRICKY).
  Weapons: Gumwad Cannons, Candy Cane Sword.
  Hobbies: Bowls on Tuesdays.
  Affiliations: Mr. Boss

• Candy Pirates' Bio: The Candy Pirates serve Stickybeard as his crew and minions. It is they who pilot the Sweet Revenge around the town where Sector V is located, while Stickybeard steals the candy from kids everywhere. Their preferred weapon is the Candy Sword (swords fashioned from candy canes).
  Appearance: Pirates with rotten teeth.
  Intelligence: ???
  Speed: Pretty fast/slow
  Weapons: Gumwad Cannons, Candy Cane Swords.

First appearance: Op NO-POWUH

Toilenator is played for laughs as a fairly incompetent villain. He shoots toilet paper at enemies, and sneaks into houses through toilets. While the other villains see him as a joke, he still manages to find a way to attend meetings (despite often being given invitations that are supposed to send him to Antarctica, see Ops AFLOAT and FLUSH). Sometimes he shows that he is capable of far more than others give him credit, but due to his naive nature it doesn't take long till he messes it up (see Op FLUSH for a prime example). He sees Numbuh Four as his arch-nemesis, probably because the boy doesn't take him seriously in the least (another possible reason might be that he thought No. 4 was going to be his first friend in Op MOVIE).He also wasted his power as the "Terma-tollinator", in which he proved that his power is some sort of benefit, which is most likely the only reason that he is still technically "part" of the adult team. Likes vegetables like asparagus, and dislikes meat such as burgers. Like Numbuh Four, voiced by: Dee Bradley Baker

Appearance: Man with paper towel roll-shaped mask and wears a yellow suit
Age: 35
Intelligence: Below average
Speed: Pretty fast/slow
Failed Plans: Getting coffee for Mr. Boss and his henchmen.
Weapons: Toilet Paper Rolls.
Affiliations: Mr. Boss

Valerie's first appearance: Op HOUND
Mrs. Thompson's first appearance: Op ROBBERS (did her villain activities in HOUND)

• Valerie's Bio: Valerie is Numbuh 5's school rival. She is actually a were-poodle who eats children's homework. She wanted to stop Numbuh 5 from getting into the Honor Society by eating her homework. With help from Numbuhs 2 and 4, Numbuh 5 broke into Valerie's house to hunt down the dog who ate her homework, only to discover that Valerie IS the dog who ate her homework and she almost ended up getting eaten by Valerie or turned into a were-poodle herself if Numbuh 4's awful homework hadn't saved the day! Voiced by: Grey DeLisle
  Appearance: Little girl wearing pink shirt and has a hairstyle shaped like a poodle's ears.
  Age: 10
  Intelligence: Very High
  Speed: Pretty fast/slow
  Failed Plans: Sabatoging Numbuh 5's GPA by eating her homework
  Weapons: Her transformation.
  Affiliations: Unknown, maybe the Delightfuls and Mr. Boss

• Mrs. Thompson's Bio: Mrs. Thompson is Numbuh 4 and 5's homeroom teacher at Gallagher Elementary. Unbeknownst to them, she is actually a were-dog, like Valerie. Voiced by: Jennifer Hale

Appearance: Woman wearing pink sweater, has brown hair and green earrings.
Age: 35
Intelligence: Very High
Speed: Pretty fast/slow
Failed Plans: Covering up Valerie's defeat
Weapons: Her transformation.
Affiliations: Unknown, maybe the Delightfuls and Mr. Boss

First appearance: Op KNOT

Windsor is a junior executive who wanted Moosk to go back to his job as an accountant at a company called Accounting and Son. Windsor's father owns the company Moosk works at. In order to get Moosk to go back to his job, he hung out with him for a little while and revealed to him he was a junior executive after waking up the Mother Tie. He almost got Numbuh 1, as he managed to escape. Eventually, Moosk went back to his job as an accountant, but Numbuh 1 reminded Moosk about his tie-hunting ways and delivered Spray Starch to him. Moosk rebelled on Windsor and his dad again. He is voiced by: Jason Marsden
Appearance: Little boy wearing fatigues and office wear.
Age: 10
Intelligence: Pretty high
Speed: Pretty fast
Failed Plans: Making Moosk and Numbuh 1 wear ties
Weapons: Ties.
Affiliations: Mother Tie (betrayed Moosk), Mr. Boss (perhaps, maybe he is his son?), Mr. Moosk (went undercover)

Basically, friends of the KND. They ally with the KND in hopes of defeating their enemies and reveal their evil plans.

Joe Balooka appears in Operation: P.I.N.K.E.Y.E. as one of Gallagher Elementary's Hall Monitors. He was once Numbuh 2's partner before Numbuh 2 became a KND operative. Nurse Claiborne bribed him with crumbles in exchange for infecting kids with pinkeye. He got shot himself before he could tell Numbuh 2 Nurse Claiborne was infecting the kids. Like Numbuh 2 said, he and Joe will always be friends. He is voiced by Daran Norris

The Boys Next Door are a group of boys who make up the next generation of Kids Next Door operatives. Instead of fighting against adults, however, the BND are engaged in a war against the evil Madam Margaret and her army of girls in an ultimate battle of the sexes. Led by an older version of Wally Beatles, who is the only remaining member of the original Sector V (Numbuhs One, Two and Five were 'girlified', Numbuh Three's wherabouts are unknown), it is an entirely male organization with the exception of Sally Sanban, who is Numbuh Three's grandaughter. The other main characters, who remained unnamed, are assumed to be the descendants of Numbuhs One, Two and Five.

The Boys Next Door, Margaret's girls, and the entire post-apocolyptic universe was assumably destroyed when an 80 year old Wally traveled back in time and stopped Margaret before she managed to gather a girlish army, thus creating an entirely different future.

Known Members include

• Numbuh 5's descendent
• Future Numbuh 4 (leader)
• Sally Sanban
• Numbuh Two's descendent
• Numbuh One's descendent

Daddy is the LTDFCD's father and Father's negative counterpart. He is a rather goofy guy who loves kids and is pretty much of a coward. He is constantly worried about his children, escpecially other kids and wishes for a world where children are free, as his children try their best to foil the DNK's plans, but it just isn't enough, but it was when the Sector V team disbanded the DNK and the DNK operatives (who turned against Negative Numbuh 4) are going to make the negative world a better place for everyone. He is voiced by Jeff Bennett.

Lizzie Devine, often just referred to as Lizzie, is the overprotective girlfriend of Nigel Uno, leader of Sector V of the Kids Next Door organization.She is overweight and thinks she's a skinny beauty queen. She occasionally calls him "Nigie". In fact, she is very similar to Lili Zanotto, a character from the video game Psychonauts.

Her parents are somehow not seen.

She has been involved in some KND missions and the following missions were: Q.U.I.E.T., D.A.T.E., C.A.K.E.D.-T.W.O., L.E.A.D.E.R., P.O.O.L., L.U.N.C.H. (she went on that mission alone) and S.N.O.W.I.N.G.

Two times in the series, a machine most associated with Lizzie was seen, the YesDear 5000, commonly referred to as a "boyfriend/girlfriend helmet". In Op L.I.Z.Z.I.E., Lizzie first uses the machine on Nigel to make him her obedient love slave. The second time was in Op S.N.O.W.I.N.G., where the wicked Fourth Grade President-for-Life, James "Jimmy" Nixon McGarfield rewires it to work on Lizzie. Lizzie's disgusting soup makes the helmet go haywire, and Lizzie is free.

In Op POOL, she has a aggressive and overbearing evil twin named Eizzil Enived.

James P. Dirt, otherwise known as Captain Jimmy, is a parody of the captain of the Enterprise, James T. Kirk, in Star Trek. He was on the run from his mother who has wanted him to take a bath for thirty-some odd years. He was featured in Operation D.U.C.K.Y., where he fled from his mother's giant duck robot, Moby Duck. He was scared to face his Mom until Tommy persuaded him and his Filthy Crew to fight back!

The Kid first appears in Operation: D.O.G.F.I.G.H.T., when he is dueling with Numbuh 2 in the sky. After their planes both get shot down, he tells Numbuh 2 he thinks he's planning to destroy the Chili-Dog Factory, only they discover Mr. Washer had pitted them against each other so that he could destroy the Hot-Dog Factory, because he's sick of the chili dog stains on his clean counter! So, Numbuh 2 and The Kid put together the surviving parts of their planes to make a new one, taking out Mr. Washer's Flying Fortress and his hobby shop! As of Operation C.A.K.E.D.-F.O.U.R., he seems to have an interest in Numbuh Three. He is voiced by Carlos Alazraqui

Lasso Lass and her horse, Clip-Clop appear in Operation COWGIRL. She runs an adult-hating organization herself called the "Cowboy Kids Club" and it is revealed that Wink and Fibb were members of that very club ever since they were kids. She allies with the KND to retrieve Mr. Fibb's dome. She is voiced by Candi Milo

The Little Traitor Dudes For Children's Defense appear in Operation P.O.O.L., where they function as the Delightful Children from Down the Lane's good counterparts ('LTDFCD' is 'DCFDTL' backwards). They live in a trailer with their kid-loving, goofball father, named Daddy, who is Mr. Wigglestein's counterpart. Instead of their counterparts' monotone voice, the Traitor Dudes speak with valley girl/surfer accents and like their counterparts, they do stuff in unison. They made friends with the Destructively Nefarious Kids and KND operatives after defeating Negative Numbuh 4.

Sonya and Lee appear in Operation: T.R.A.I.N.I.N.G. as two young KND trainees alongside Hoagie Gilligan/Numbuh 2's little brother Tommy. Together, the three of them saved the KND Code Module from being stolen by Father.

Lee and Sonya were both seen again in op G.R.A.D.U.A.T.E.S. when they were graduating along with Tommy. Unlike Tommy, however, they remain in the KND, assigned to Sector W.

Some fans have speculated that Sonya is the little sister of Numbuh 362, but Mr Warburton has denied this.

In the Codename: Kids Next Door universe, Santa Claus has a different way of delivering toys with his "Reindeer" system (Cerebro parody). He uses it to deliver presents to the good kids and coal to the bad kids. The DLFDTL tried to use it get all the presents.

Elfa Strike is a parody of the X-Men that works for Santa Claus. The members are:

• Wintergreen (Wolverine parody)
• Nutcracker (Nightcrawler parody)
• Snow Angel (Storm/Angel parody)
• Coniferous (Colossus parody)

Vin Moosk appears in Operation: K.N.O.T., where he acts as a famous tie-hunter, where he helps Numbuh 1 fight off school ties. He was once a sad, obedient accountant that worked at a company called Accounting and Son. He discovered accounting was boring that he quit his job because of the tie he wore at work. He and Numbuh 1 planned to attack the Tieland Shopping Mall by destroying the school ties. Before they could complete that task, Windsor, one of Moosk's comrades, revealed to Moosk and Numbuh 1 he was the "Son" in "Accounting and Son," who wanted Moosk to go back to his old job by bringing Moosk to Mother Tie. Eventually, Moosk gave up his tie-hunting ways and went back to his old job as an accountant, but Numbuh 1 reminded him of what he was and delivered Spray Starch to him by, faking Numbuh 1 himself, as a delivery boy. He is voiced by Jim Cummings

Wilson Woodrow appears in E.L.E.C.T.I.O.N.S. as the Fourth Grade President's secretary. During the Fourth Grade Elections, he counts the votes. He was promised a slice of the Delightful Children from Down the Lane's birthday cake if he made the Delightful Children the winners of the election. After he gets thrown in detention for a crime he didn't do, he tells convict Numbuh 1 he is the real winner of the election.

His name is an amalgam of Woodrow Wilson, which yet again links the position of Fourth Grade President in KND with the position of U.S. President.

Joey Beatles is the baby brother of Numbuh 4. He is seen briefly in Operation: S.P.R.O.U.T., and is seen again in D.O.D.G.E.B.A.L.L., where he defeats the Dodgeball Wizard for Numbuh 4, which only Numbuh Two knows. Judging by this, he apparently has very great dodgeball skills, better than those of his brother. Voiced by: Dee Bradley Baker

Tommy Gilligan is a fictional character on the television show Codename: Kids Next Door. Tommy looks up to his brother, Numbuh 2 (aka Hoagie Gilligan), and wants to be just like him. Of course, his love for his brother matches how much he annoys everyone. On the upper hand, he would make an excellent operative... if he were still eligible, that is. Voiced by Dee Bradley Baker.

His first appearance was in "Op T.O.M.M.Y.", in which Numbuh 2 felt quite annoyed at him, so Tommy left him and built "The Flu Bug" for The Common Cold (whom the operatives had been fighting). This whole deal ended with all of the operatives (plus Tommy, who was not an operative then) getting sick, but thankfully no others (thanks to the Gilligan mother's chicken soup).

He did not appear again until the season finale for season 2, "Op E.N.D.", in which in exchange for tagging along with Numbuh One on his mission, he made Nigel make him an operative, with "Numbuh T" as his codename (prompting the response: "T is not a number!"). His story continued in "Op T.R.A.I.N.I.N.G.", the first ep of the series not to feature any of the regular five operatives, which showed him training with his new friends Sonya and Lee at the KND's Arctic base, in the process washing away Father and his minions, who were trying to take the Codemodule.

The Codemodule would be a key plot point in his next appearance, in season 3's "Op G.R.A.D.U.A.T.E.S.", in which he graduated from cadet school to regular operative status, and was assigned to Sector V, the same sector as the regulars, once again picking "Numbuh T" as his codename, once again getting the "T is not a number" response from a random person the crowd.

During the post-graduation party, all operatives were called to fight Father and his new ray. It turned out not to be a "age-ifying" ray as Nigel and company had expected, but rather one that turned all KND operatives into animals (for example, Numbuh 2 became a hippo, Numbuh 86 became a female dog, the Numbuh 44's became kangaroos, etc.) while others (like the Delightfuls) were immune.

Later on, he figured that this was because "Boogerhead" Father (that is how Tommy referred to him) had somehow linked the Codemodule (after having stolen it in "Op S.L.U.M.B.E.R.") to his ray. "The Runt of the Litter" (how Father referred to Tommy) had to sacrifice his own membership (or in the show's own words, take out his boogers from the Codemodule) to avoid the effects of Father's "animalization" ray and defeat him. However, Numbuh 362 revealed at the end of that ep that, despite saving the organization, there are computer failsafes that also preclude him from re-entering, so he became The Tommy, a Batman like figure who works alone. Since then, virtually all of his appearances have had him wearing a dark blue hat and cape over his usual clothes (which have the same color as Hoagie's clothes).

In Operation: DUCKY, it is revealed he HATES taking baths, that's when he met up with Captain Jimmy.

For information: See Cree Lincoln, Chad Dickson and the Teen Ninjas.

Mushi Sanban is the baby sister of Numbuh Three. Like her older sister, she is cheerful and playful; unlike her older sister, she has shown evidence of a nasty streak. Also like her sibling, she wears an oversized dress, only hers is purple rather than green. She has appeared in a few eps: Ops SPACE, KASTLE and CLUES. She is voiced by Tara Strong, who is famous for her role as Raven in Teen Titans, another Cartoon Network animated series.

Sally Sanban appears in Operation F.U.T.U.R.E. as the granddaughter of Numbuh 3 (Kuki Sanban). After joining the Boys Next Door (the next generation of Kids Next Door operatives), she helps Numbuh 4's future self defeat the villainous Madam Margaret and have boys and girls play together. Like Mushi Sanban, Numbuh 3's sister in current time, Sally is voiced by Tara Strong.

• Mrs. Uno - Mother of Nigel Uno. Voice: Jennifer Hale
• Mr. Uno - Father of Nigel Uno. Hobbies include playing the Sousaphone and Fishing. Voice: Frank Welker

• Mrs. Betty Gilligan - Mother of Hoagie Jr. and Tommy Gilligan. Voice: Candi Milo except in Op. T.O.M.M.Y. Cree Summer

• Mrs. Genkei Sanban - Mother of Kuki and Mushi Sanban. Despite her serious nature, her name is a play on the Japanese word "genki" which can be translated as "energetic." Voice: Lauren Tom
• Mr. Kahni Sanban - Irritable Father of Kuki and Mushi Sanban. His name is a pun of the Japanese word "Kane," meaning "crab." Voice: Keone Young

• Mrs. Beatles - Mother of Wally and #Joey Beatles. Voice: Jennifer Hale
• Mr. Beatles - Father of Wally and Joey Beatles. Voice: Jeff Bennett

• Dr. Lincoln - Father of Cree and Abby Lincoln. Is an obvious parody of Bill Cosby. Voice: Kevin Michael Richardson
• Mrs. Lincoln - Mother of Cree and Abby Lincoln. Speaks with a French accent. Voice: Cree Summer

• Mrs. Winifred Fullbright - Mother of Fanny Fullbright. Voice: Jennifer Hale

• Mrs. Dickson - Mother of Chad Dickson. Also Known As Mega Mom. Voiced by: Kath Soucie
• Mr. Dickson - Father of Chad Dickson. Also Known As Destructo Dad. Voiced by: Jeff Glen Bennett

Grandma Uno - Grandmother of Nigel Uno. Was mentioned in G.R.O.W.-U.P. while the team was battling Father. Voice: ??

Lydia Gilligan - Mother of Betty and grandmother of Hoagie, Jr. and Tommy Gilligan. Is one of the Senior Citizen Squad. Voice: Candi Milo

Grandpa Sanban - Father of Genkei and grandfather of Kuki and Mushi Sanban. Voice: Jeff Bennett

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