History KidHero / WesternAnimation

* WesternAnimation/PrincessNatasha is the pre-teen daughter of the king of Zoravia who sends her to the United States as a secret agent under the guise of an exchange student to keep eyes on her evil uncle Lubek at the school where she attends. Natasha's mission is to stop Lubek's plans to take over Zoravia.

* WesternAnimation/PrincessNatasha is the pre-teen daughter of the king of Zoravia who sends her to the United States as a secret agent under the guise of an exchange student to keep eyes on her evil uncle Lubek at the school where she attends. Natasha's mission is to stop Lubek's plans to take over Zoravia.

* Twins [[Characters/GravityFallsDipperPines Dipper Pines]] and [[Characters/GravityFallsMabelPines Mabel Pines]] from ''WesternAnimation/GravityFalls'' are 12, celebrating their 13th birthday in the series finale. Once Dipper finds the journal describing the oddities of Gravity Falls, he and Mabel get involved with increasingly weird phenomenon.

* ''WesternAnimation/AdventureTime'' has Finn, Flame Princess, and several other borderline examples. Finn, the main protagonist and card-carrying hero, is a somewhat more realistic take on this trope, as he is genuinely nice and has good intentions but often [[NiceJobBreakingItHero screws up]] out of ignorance or impulsiveness. He doesn't always do the right thing, either, although he does when it counts. Even though Finn ages during the series (he begins at 12 and celebrates his 17th birthday in the final seasons) and [[CharacterDevelopment grows up quite a bit]], he never quite abandons his boyishness.

** Aang on the [[{{Animesque}} Asian-influenced]] ''WesternAnimation/AvatarTheLastAirbender'': that with tasks such as confronting a supreme monarch and restoring the political balance of the world, it seems almost cruel that such a burden should be placed upon a 12-year-old boy. To an end, this was essentially his initial reaction when presented with the entire concept, and most Avatars don't even start worrying about anything like this until they're ''[[DangerousSixteenthBirthday 16]]''. Fortunately, thanks to the series' focus on CharacterDevelopment, he's moved forward a bit from being an irresponsible, blissfully carefree, stereotypical 12-year-old kid who uses the word "fun" in every other sentence. He does however occasionally get depressed by how much he is responsible for by virtue of being the Avatar. Can't blame him though, because after all, he [[BecauseDestinySaysSo didn't have much of a choice in the matter]].
** Additionally, the task of undoing the effects of the hundred-year-long war rests on the shoulders of 16-year-old Firelord Zuko. Good luck with that!

** The sequel series ''WesternAnimation/TheLegendOfKorra'' stars Korra, a borderline example as she's seventeen at the start. However, sometimes she doesn't even act her age.

* ''WesternAnimation/Ben10'' has a 10-year-old protagonist named Ben Tennyson, who gains the power to turn into ten (or more) different aliens. However, he rarely acts more mature than usual for that age.

* Twins Dipper and Mabel from ''WesternAnimation/GravityFalls'' are 12, celebrating their 13th birthday in the series finale. Once Dipper finds the journal describing the oddities of Gravity Falls, he and Mabel get involved with increasingly weird phenomenon.

* The two protagonists of ''WesternAnimation/MiraculousLadybug'', Marinette and Adrien, who are both roughly 14-years-old, become superheroes who save the city on a near-daily basis.

** Spike is a pre-teen dragon who is very dedicated to helping his pony friends.

* ''WesternAnimation/SouthPark'': Often the day is saved by the boys, but played more traditionally in the Mysterion arc.
* ''WesternAnimation/StevenUniverse'' stars Steven, a prepubescent boy (starts the series at age 12, ends it at age 14) who protects the Earth with his mother's team of {{Magical Girl Warrior}}s, all of whom are [[GemHeart ageless alien gemstones]].

** Connie, who's canonically a year and a quarter younger than Steven, later becomes a full-fledged member of said team of {{Magical Girl Warrior}}s after taking sword lessons from Pearl.

%%* ''WesternAnimation/AtomicBetty''

%%* ''WesternAnimation/TheLifeAndTimesOfJuniperLee''.

* While ''WesternAnimation/TeenTitans'' plays the trope straight, ''WesternAnimation/BatmanBeyondReturnOfTheJoker'' deconstructs it with [[spoiler: another Robin, Tim Drake]]. [[WouldHurtAChild Being a kid doesn't/won't spare you]] [[spoiler: from the torture and brainwashing MindRape you'll receive once you end up all alone in the claws of a sadistic, murderous, amoral psychopath like ComicBook/TheJoker. If you survive and your captor is defeated, [[GoMadFromTheRevelation you'll completely lose your sanity]] and it will take years of therapy to merely render you functional, and [[ShellshockedVeteran you'll live with PTSD through the rest of your life]]]].

** In the original series''WesternAnimation/ThePowerpuffGirls'', the titular girls are 5-year-olds (physically, chronologically they're younger) who regularly fight villains and save their city.

* The ''WesternAnimation/TeenTitans'' source material actually had the heroes as young adults overcoming the fact that they weren't kids anymore and continuing their heroic exploits regardless. However, since the cartoon series was being directed towards children, they were de-aged to around 15-17 and 16-18.

* ''WesternAnimation/YoungJustice'' with occasional deconstruction. The kids go through all sorts of hell; some deal with it better than others.

* ''WesternAnimation/MyLittlePonyFriendshipisMagic'':

** Additionally, the task of undoing the effects of the hundred-year-long war rests on the shoulders of sixteen-year-old Firelord Zuko. Good luck with that!

* ''WesternAnimation/Ben10'' has a ten-year old protagonist named Ben Tennyson, who gains the power to turn into ten (or more) different aliens. However, he rarely acts more mature than usual for that age.

* ''WesternAnimation/DrDimensionpants'': Kyle, a 12 year-old boy who defends his dimension from all sorts of threats.
* ''WesternAnimation/TheFairlyOddParents'': Ten year old Timmy Turner, while he often fits the trope DesignatedHero because he causes as many problems as he solves, there have been cases where danger has occurred through no fault of his own, and he does step up to the plate and become a genuine hero. Wishology is the most known example of this.

* The two protagonists of ''WesternAnimation/MiraculousLadybug'', Marinette and Adrien, who are both roughly fourteen years old, become superheroes who save the city on a near-daily basis.

* ''WesternAnimation/PawPatrol'' gives us Ryder, a tech whiz who can drive an ATV (among other vehicles), fix said vehicles, and is brave enough to jump off a ''moving vehicle'' '''onto another moving vehicle''' '''''and wrestle a monkey for control.''''' He's ten years old.
* ''WesternAnimation/PJMasks'': Resolves around 3 six-year-old [[AnimalThemedSuperbeing Animal themed superheroes]]; Catboy, Owlette, and Gekko. From Season 2 onwards the show introduces more kid heroes that act as [[SixthRanger occasional backup members]] for the team; Armadylan, An-Yu (though she is a WereDragon that is [[OlderThanTheyLook older than she looks]]) and Newton Star. Their enemies are also kids.

** In the original series''WesternAnimation/ThePowerpuffGirls'', the titular girls are five year olds (physically, chronologically they're younger) who regularly fight villains and save their city.

** Five year old Princess ''wants'' to be one of these, but the girls won't let her become one. So instead Princess becomes a Kid Villain.

** Teenaged Lars also becomes one after he TookALevelInBadass in season 5. [[spoiler:To wit, he goes from a cowardly {{Jerkass}} to a GuileHero and SpacePirate, as well as the ArchEnemy of a high-ranking Homeworld Gem.]]

* ''WesternAnimation/YoungJustice'' with occasional deconstruction. The kids go through all sorts of hell; some deal with it better than others.