List of one-time villains in Codename: Kids Next Door

Villains in Codename: Kids Next Door that appeared only once.

Adult Senate
Only appearance: Operation S.A.F.E.T.Y.

The Adult Senate is hooked on passing fun laws that'll make kids' lives miserable. During the events of Operation: S.A.F.E.T.Y., they once let Senator Safely cook up his plan to safe-ify all the other children, until everything went awry as the Safety-Bots started to malfunction. Their leader, the Mayor is voiced by Maurice LaMarche in the style of Foghorn Leghorn.

Al Sugarh
Only appearance: Operation J.E.W.E.L.S.

Al Sugarh is a thief who stole the Blurpleberry Supreme candy that Numbuh 5 intended to give Numbuh 1 for his birthday, in order to pawn it at his shop. He is voiced by Rob Paulsen''

Alternate Numbuh 2
Only appearance: Operation W.H.I.T.E.H.O.U.S.E.

Alternate Numbuh 2 (a.k.a. Vice President Hogan P. Gilligan) is an evil version of an adult Numbuh 2 who is extremely jealous of President Numbuh 1 and desires to be president himself. Throughout the episode he tempts Numbuh 1 to sign "The Bill of no Kid's Rights". He also has evil Numbuhs 3 and 4 at his command. Although he is not at all like regular Numbuh 2 he has equally bad puns. Voiced by Benjamin Diskin

Alternate Numbuhs 3 and 4
Only appearance: Operation W.H.I.T.E.H.O.U.S.E.

Alternate Numbuhs 3 and 4 are evil adult versions of Numbuhs 3 and 4. Numbuh 3 seems to be a secretary to "President" Numbuh 1 (an alternate version of Numbuh 1). Numbuh 3 sounds like her mother. Voiced by Lauren Tom. The Alternate Numbuh 4 (named General Beetles) resembles Popeye the Sailor in the corncob pipe, and commands the army. Like his young counterpart, voiced by Dee Bradley Baker.

Amerigo Vespinachio and the Spinach Armada
First Appearance: Operation S.P.I.N.A.C.H.

Amerigo Vespinachio is from the country of La Spinachia who works for the King of Spinachia. He tries to get the students to have their spinach entree. They tried to force the KND and the students to eat spinach. They had Numbuh Two brainwashed until he broke free and thwarted Amerigo by sending him into the Spinach Vat and begged Numbuh Two to rescue him. We learn that he doesn't like spinach and just enforces the king's laws. He is a spoof of Amerigo Vespucci. Voiced by Dave Wittenberg.

The Spinach Armada' is Amerigo Vespinachio's servents. They are a spoof of the Spanish Armada.

Annoyingly Cute Triplets Who Lived Upon the Hill
The Annoyingly Cute Triplets Who Lived Upon the Hill (A.C.T.W.L.U.T.H. for short) are female triplets who lived at the Alamode during the 19th century. Their mother hoarded the recipe for the greatest cake ever, who refused to share with others. When the KND attacked the Alamode to get the cake, they set off a defense mechanism, freezing close to 5000 operatives (all of whom had to be decommissioned after being thawed, as they were technically over 13). The ACTWLUTH must be Father's grandparents, as their mother is stated by him to be his Great-Grandmother. They strangely appear similar to the blonde Delightful Child, only taller, with sneering expressions

Black John Licorice and his Licorice Pirates
Only appearance: Operation L.I.C.O.R.I.C.E.

Appearing in Op LICORICE, the Licorice Pirates are pirates who, as their name suggests, are made out of black licorice due to a curse for tearing down all the licorice trees. They fall apart in the sunlight, but reassemble at night. They are led by Black John Licorice (voiced by Marc Graue), whose name is similar to that of Black Jack chewing gum (the anise flavor of which resembles licorice). They capture Heinrich Von Marzipan from KND Arctic Prison because he ate a candy seed that they needed. The seed in question had to be planted on the island the licorice that they took grew on. They had to water the seed with soda while under the moonlight, causing the seed to grow, which would thereby return the licorice pirates to normal. Stickybeard has been involved with them, once a cabin boy on their ship in his youth. Numbuh Five had to team up with Stickybeard and his Candy Pirates to save Heinrich. Together, they foiled their plans and rescue Heinrich. They parody Captain Barbossa and his cursed pirate crew in Pirates of the Caribbean: Curse of the Black Pearl. Different VAs have voiced the Licorice Pirates: Jeff Bennett, Dee Bradley Baker and Mark Hamill.

Coach Wetterhahn
Only appearance: Operation L.E.A.D.E.R. (was mentioned in C.H.A.D.)

Coach Wetterhahn is the football coach at Hendry Middle School. He once let Chad and the Jets plan an invasion on the KND Moonbase, but after the KND blew up the football stadium using the Footbomb he gave them Chad and his pals, he made Chad and the football team do 6,000 push-ups.

Ghost Hamsters
Only appearance: Operation G.H.O.S.T.

The Ghost Hamsters are the spirits of the hamsters that power the treehouse after those hamsters die. The most recent hamster to die was Chubbo, a rather fat hamster whom Numbuh 3 loved very much. The Ghost Hamsters tried to take Numbuh 3 with them to Hamster Heaven, and they were going to force her after she refused, but Joaquin and the other living hamsters took down the ethereal rodents with soda.

Great White Asparagus
Only appearance: Operation A.F.L.O.A.T.

The Great White Asparagus is a giant asparagus beast living in a sea of asparagus who eats people. It ate Numbuhs 1-4. Before it can eat Numbuh 5, it was killed by Stickybeard and his Candy Pirates who removed Numbuhs 1-4 from its stomach.

Jenkins the Butler
Only appearance Operation G.R.O.W.-U.P.

Jenkins was the butler for the Delightful Children from Down the Lane in Op. G.R.O.W.-U.P. They tested the Age-Changing Cigar on him when they were bored, turning him into a kid and then into a baby. After the KND broke into the mansion, the DCFDTL ordered Jenkins to do something, but as they had not changed him back, all Jenkins could do was bawl. He's voiced by Dee Bradley Baker.

Katie
Katie is a virtual reality character designed to trap Numbuh 1 in the Happy Headband by Chester. Tara Strong provides Katie's voice.

Lunk
Only appearance: Operation F.O.U.N.T.A.I.N.

Lunk is a kid that has been delightfulized by the Delightful Children from Down the Lane. He is not to be confused with the member of the Six-Gum Gang, Lunk. He was helping the DCFDTL interrogate Leona into divulging the location of the Fountain of Youth. After the DCFDTL took Leona away, he was ordered to prevent unexpected guests from ruining their plans only to be knocked out by Numbuh 5. He is voiced by Dee Bradley Baker.

Madam Margaret and the Girl Squad
First appearance: Operation F.U.T.U.R.E.

Madam Margaret's bio: Madam Margaret (a.k.a. Margie) is merely a little girl who has disguised herself as an adult using a robot suit. She is the evil, sexist 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 distracted. Future Numbuh 4 used Margaret's time machine to travel to the present and tip the Sector V team off about Margaret's scheme and rescue Numbuh 4. Numbuh 3 saves the day with H.I.P.P.I.E.-H.O.P., destroying the castle in the process. She's voiced by Candi Milo.

Girl Squad's bio: The minions of Madam Margaret, the Girl Squad must enforce their leader's rule by blasting boys and other people who oppose Margaret with Girlifying Rifles, like the KND for example. The society no longer exists because the KND had changed the future and imprisoned Margaret at KND Arctic Base. Different VAs have voiced Margaret's Girl Squad: Rachael MacFarlane, Tara Strong, Candi Milo and Lauren Tom.

Master Safety-bot
Only appearance: Operation: S.A.F.E.T.Y.

The Master Safety-bot, created by Senator Safely, commanded all the other Safety-bots to safe-ify the entire planet. He has traffic cones on his shoulders and a firefighter's helmet on his head that came off during a robo-fit. He also has a police cruiser's light attached to his head. When it came to Joey Beatles with fake blood, the Master Safetybot overloaded. He is based off Master Mold.

Mr. B.
Only appearance: Operation C.A.B.L.E.-T.V.

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 (based on Baby Herman from Who Framed Roger Rabbit), except with a "cigar" in his mouth. He despised the KND because they constantly destroy his broadcast satellites, so 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. He gets hit by his own age-changing cigar, turns into a real baby, and is put into the care of his assistants, who are apparently his parents.

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.

Mustaches
Only appearance: Op S.H.A.V.E.

The Mustaches are living mustaches that used to be on everyone's face. But not anymore. So they went onto people's faces and took over their minds, making them obsessed with them, mustaches and making them talk with a southern accent. They are currently on the faces of penguins. The leader is voiced by Daran Norris.

Nerd Zombies
Only appearance: Operation U.N.C.O.O.L.

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. Tom Kenny voices the leader of the Nerd Zombies.

Rainbow Monkey Plane Pilot
Only appearance: Operation R.A.I.N.B.O.W.S.

Rainbow Monkey Plane Pilot was a pilot for Mr. Mogul and Simon in Op RAINBOWS. He was carrying the Rainbow Monkeys in cages on a plane. Voiced by Dee Bradley Baker.

Retirement Home Secretary
Only appearance: Operation H.O.M.E.

Not much is known about the Retirement Home Secretary, other than he assists Nurse Claiborne with her retirement home operation and is usually seen at the entrance. He is voiced by Kurtwood Smith.

Patient C ("Cootie Girl")
Only appearance: Op O.U.T.B.R.E.A.K.

Patient C, or "Cootie Girl", was what the KND scientists in the Scientific Seabase had locked up, convinced she had cooties. Cree, however, as a threat, set her free and everyone evacuated the treehouse, and Sector V were assigned to go in and get rid of her, unaware of the reason. She's Numbuh 74.239's sister. Voiced by Grey DeLisle.

Senator Safely
Only appearance: Operation S.A.F.E.T.Y.

Senator Safely is addicted to safety and wants to make the world 100% safe for kids. He built giant "Safety-bots" to "safe-ify" the entire planet. When the Safety-bots went too far and started attacking adults, Safely joined forces with Numbuhs 2 and 4 to shut down the Safety-bots. He knew someone was going to get hurt. He is voiced by Dee Bradley Baker.

Senior Citizombies
Only appearance: Operation Z.E.R.O. Movie

The Senior Citizombies {SC} are Grandfather's private army, which he creates just by touching a person, when infected, the person becomes old, grown up (in kids' cases) and has green wrinkly skin, crooked teeth and yellow pupiless eyes. It is unknown if Senior Citizombies are as powerful as they used to be. The Toilenator, Sector V's hamsters, and Numbuh 90 have demonstrated that they probably are (Numbuhs 2 through 5 seem to have gotten stronger). A Senior Citizombie can turn another person into a Citizombie by touching them, the only two ways to transform a Citizombie back to normal is to decommission Grandfather and remove his memory and powers or to put them into the Age-a-tonic Birthday suits (though this method isn't quite perfect, as when Numbuh 1 put his team into the suits, several Senior Citizombified parts of them were not covered by the suits).