History Characters / TheAdventuresOfJimmyNeutronBoyGenius

** In "The Egg-Pire Strikes Back" she tells King Goobot how to get inside Jimmy's lab after learning it from Carl and Sheen. Partly subverted since for all she knows they just want to help her in being able to compete with Jimmy on an equal footing by means of building a lab of her own, though she's dumb enough to trust the Yolkians (and so is everybody else in town, except Jimmy). When she realizes that her actions put the whole Retroville in danger, she is the first to call on the others to believe Jimmy and help him bring down Poultra.

* AmbiguousGender: In the film, he's referred to as male and a "god", but in "Return of the Yolkians", she's referred to by female pronouns. This ''may'' be justified because the Poultra who appeared in "Return of the Yolkians" wasn't the same one as the original, but the episode words it in a way that suggests that Poultra has ''always'' been female.
* BackFromTheDead: Subverted - she wasn't killed in the movie, but apparently died in between the movie and the show [[spoiler:though Ooblar states she simply left for another civilization]]. In the TV special "Return of the Yolkians", a duplicate of her is cloned, and Jimmy mentions it's not the same Poultra.

* BackFromTheDead: Subverted - she wasn't killed in the movie, but apparently died in between the movie and the show [[spoiler:though Ooblar states she simply left for another civilization.]] In the TV special "Return of the Yolkians", a duplicate of her is cloned, and Jimmy mentions it's not the same Poultra.

* TakeOverTheCity: In his first appearance. Jimmy assumes he's just gonna take over the world, but he says he's going for something smaller.

* MoralityPet: To Nick.

* BookDumb: In "Raise of the Oozy Scab", Brittany is revealed to be illiterate.

* NeverLearnedToRead: Which she sometimes denies.

* OddFriendship: A boy genius who is best friends with an asthmatic hefty boy who's obsessed with llamas, a hyperactive Hispanic kid who's obsessed with a superhero, a skateboarding bad boy, his academic rival, a sassy girl who loves music and a ditzy dumb blonde.

--->'''Jimmy:''' *jumping and pumping fist to the air* "I did it! She likes me! She's gonna go out with me! I made a date with Cindy!" *beat* [[BigNo "NOOOOOOOOOOOOOOOOOO!"]] [[SkywardScream *shot of him from up, and then zooms out to Retroville and Earth*]]
** It even happens with a similar situation where in ''VideoGame/JimmyNeutronVsJimmyNegatron'', where Cindy falls in love with Negatron.
--->'''Jimmy:''' Not that! Anything but that! [[BigNo "NOOOOOOOOOOOOOOOOOO!"]]

* BecauseYouWereNiceToMe: Cindy holds a particular fondness towards [[WesternAnimation/TheFairlyOddparents Timmy Turner]] because he actually treats her with respect and values her intellect (to Cindy's delight). Even after learning Timmy lied to her about being a genius so she could like him, she still considers him a decent guy because he was genuinely sorry about it.

* JerkWithAHeartOfGold: Jimmy tends to be arrogant, condescending, and snarky, creating various inventions for his own selfish intentions. However, in the end, he's well-meaning and does care about his friends and parents.

* TookALevelInDumbass: He tends to let his overconfidence and arrogance get the best of him quite a few times.

* JerkassHasAPoint: Cindy is not entirely wrong about Jimmy always causing trouble for the town (and sometimes, the world) and always points out the flaws in his "brilliant plans". In "The Science Affair", although more to make herself win, she's not entirely wrong that [[ChildProdigy Jimmy]] should no longer be permitted to participate in school science fairs since he wins ''every year'' and give other kids a chance.

* HiddenDepths: Despite scoring a [[EpicFail quadruple F-minus]] on a U.S. history exam, in "Who Framed Jimmy Neutron", he is aware that Jimmy Carter is the 39th President of the U.S., showing that he has at least some educational knowledge of U.S. history.

The main protagonist. He is a boy with a stunning IQ and a love for science. From Hypercubes to Hypnorays, Jimmy can whip up the most amazing inventions. However, things have a way of going awry, and more often than not, Jimmy has to save the day from himself. But with friends, family, and a secret lab, there's no problem this boy genius can't handle. Right?

-->'''Cindy:''' Jimmy, haven't you learned from the Yolkian incident not to talk to intergalactic strangers?

* AnimeHair: Lampshaded consistently. It's been compared to a gum massager, soft-serve ice cream, fudge dip, and still other more ridiculous things.

* ExtravertedNerd: An [[{{Cloudcuckoolander}} eccentric]] comic book-loving nerd. Unlike most examples, though, he's very unintelligent.

King Goobot's less than competent assistant.

* TooDumbToLive: He's not too bright.

** The first is when Jimmy altered the past so that his dad would invest his only money ($50) into the then non-popular restaurant [=McSpanky's=], to make his parents rich and allow him to get an expensive set of encyclopedias that he wants. Unfortunately along with Judy, he becomes a snobby rich man with no interest in his son, forgetting his name and offering him some money to leave. He even refuses to help pay for a lifesaving operation for his father merely because he does not want to lose any money.

* BettyAndVeronica: Quite literally the sweet-natured Betty to Cindy's Veronica. Ironically, Betty looks like Veronica and Cindy looks like Betty.

* KavorkaMan: A rare female example. She attracted Thomas Edison, went dancing with President Hoover, flirts with Sam and was once married to a werewolf.

* AffablyEvil: Sure, he's got evil scheme after evil scheme, but he's still a pretty friendly guy. For example, when he suffers a PottyEmergency, he politely asks Sam if he can use the restroom at the Candy Bar, and even tries to order some food when he's told the restrooms are for paying customers only. He even asks how his old teacher, Ms. Fowl doing.

* BondVillainStupidity: She devised a death trap for Jimmy and Jet Fusion instead of killing them directly like the majority of Bond villains. Considering her debut is in an episode parodying spies film, it's to be expected.

* BewareTheSillyOnes: Their personalities and bickering is mostly comical. However, these two are easily among the most dangerous antagonists in the series as their second appearance was literally seconds away from the extinction of the human race.

* LogicBomb: How they are typically defeated. Their first appearance Jimmy abused their directive to protect him from attackers by beating himself up in front of them. In their second appearance (after Jimmy's first attempt at this made things much [[KillAllHumans MUCH worse]]) Jimmy overloaded them by forcing them to calculate the exact value of pi. In addition, when Jimmy repurposes them to proofread his artistic classwork, his attempts at poetry is so bad it also has this effect.

* FingerGun: All three of them use this motion when shooting some kind of gooey substance used in sealing Jimmy's lab.

* BitchInSheepsClothing: His first appearance. Since his identity had been uncovered, he dropped the nice facade in subsequent appearances.

* OnlySaneMan: Putting aside his need to change diapers, he's mostly this with King Goobot.

* LastNameBasis: Always referred to by his title, though the door to his office and reveals his first name: William.

* TeachersUnfavoriteStudent: Miss Fowl has a particular dislike towards him due to his obession with Ultra Lord, to the point where [[ShowAndTellAntics he showed off his action figure of him for show and tell seven weeks in a row]], and because he is extremely BookDumb, to the point where he once scored a [[FMinusMinus F----]] on a test (one of his answers was that Ultra Lord was the father of our country, which was on the official Ultra Lord website). She is also not above insulting [[HollywoodToneDeaf his terrible singing voice]], to the point where after she gives him a solo in the school choir to thank him for saving the town from the Twonkies (since they like terrible music but hate good music), she locks him in a sound-proof booth. In "Journey to the Center of Carl", when all of her students are too sick to go to school thanks to Jimmy's sick patches, she admits that she misses all of her students, except for Sheen.

* VileVillainLaughableLackey: The Vile Villain to Ooblar's Laughable Lackey.

* VileVillainLaughableLackey: The Laughable Lackey to Goobot's Vile Villain.

* StarterVillainReturns: Makes a return in the series including the finale ''The League of Villains''.

* ContraltoOfDanger: Has a sensual, breathy voice. She amps up the breathiness whenever [[TheTease flirting]].

* EstablishingCharacterMoment: His first scene in the movie has him eating his own pet alien and then having a crew member [[ThrownOutTheAirlock spaced]] for [[DisproportionateRetribution unceremoniously showing up in his throne]], all within a minute.

** "Lady Sings the News" -- Principal Willoughby implies that Miss Fowl might be a trans woman (i.e., she was born a man).