As shown by the pig, you don't even need to be human to be a Kid Hero!
Kid Heroes in western animation.
- Action Pack is about a group of children who each have super powers and meet other kids with powers as the series goes on. Slowly it gets to the point to were almost all the kids are super powerfull.
- 101 Dalmatians: The Series: The main cast are all puppies who constantly foil Cruella's evil plots and go on rescue missions.
- Adventure Time 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 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 grows up quite a bit, he never quite abandons his boyishness.
- American Dragon: Jake Long stars a preteen/teenage boy with the ability to transform into a dragon. There are numerous kid heroes around the world with powers just like him.
- Atomic Betty stars a 12 year old who is also a galactic guardian.
- Joey Felt from Atomic Puppet, thanks to being able to transform by putting superhero-turned-Hand Puppet AP on his hand.
- Attack of the Killer Tomatoes!: Chad Finletter manages to put a dent in Doctor Gangreen's plans.
- Avatar: The Last Airbender:
- Avatar Aang on the Asian-influenced Avatar: The Last Airbender: 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 16. Fortunately, thanks to the series' focus on Character Development, 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 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!
- Actually, the whole main cast are just children who are responsible for saving villages, and ultimately the world, from psycho villains.
- The sequel series The Legend of Korra stars Korra, a borderline example as she's seventeen at the start. However, sometimes she doesn't even act her age.
- Oh No! It's An Alien Invasion: The team fighting against the Brainling invasion are all kids, since the Brainlings took away most of the adults.
- In The Tale of the Great Bunny, the hero is a girl named Abigail, who goes on a quest to save The Great Bunny.
- While Teen Titans (2003) plays the trope straight, Batman Beyond: Return of the Joker deconstructs it with another Robin, Tim Drake. Being a kid doesn't/won't spare you from the torture and brainwashing Mind Rape you'll receive once you end up all alone in the claws of a sadistic, murderous, amoral psychopath like The Joker. If you survive and your captor is defeated, you'll completely lose your sanity and it will take years of therapy to merely render you functional, and you'll live with PTSD through the rest of your life.
- Ben 10 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.
- Although a bit more mature and determined in the sequel, Ben 10: Alien Force, 15-year-old Ben Tennyson still fits into this trope.
- Ben is now a full-fledged Kid Hero in the Grand Finale of Ben 10: Ultimate Alien.
- Captain Flamingo is the caped and cowled alter ego of an appoximately 10-year-old suburban kid named Milo Powell. His specific superhero mission is to help other kids his age in trouble — usually because they've done something self-inflicted, like they got lost while hiking or accidentally flooded their own house. His missions may not exactly save the world, but they are extremely important to those he helps. And he does have a recurring adversary (The Warrior Monkey).
- You think one Kid Hero, or a small group of Kid Heroes is something? The Kids Next Door (from, where else? Codename: Kids Next Door) is a worldwide organization full of them! No one over thirteen is allowed except for a few double agents.
- Danny Phantom: "Young Danny Fenton, he was just 14 / When his parents built a very strange machine..."
- Whenever the titular character of Dennis the Menace wasn't causing chaos for his next-door neighbor, Mr. Wilson, he was often ruining the plans of everyone from human criminals to evil space aliens.
- Dr. Dimensionpants: Kyle, a 12-year-old boy who defends his dimension from all sorts of threats.
- The Fairly OddParents!: 10-year-old Timmy Turner, while he often fits the trope Designated Hero 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.
- Twins Dipper Pines and Mabel Pines from Gravity Falls 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.
- Fangbone! (and the original Fangbone! Third Grade Barbarian books): Fangbone and Bill are Bash Brothers who fight together to prevent Venomous Drool from getting his evil magic toe back, taking down all sorts of monsters and other Skullbanian villains.
- Dib from Invader Zim is a school age boy, though he's more of a Hero Antagonist.
- Kim Possible:
- Kim and her best friend Ron. They graduate from high school in the Grand Finale and they've been saving the world since middle school.
- Shego was also a former Kid Hero. Her brothers are now mostly adults, but the twins (Wego) don't seem much older than Kim's little brothers.
- The Life and Times of Juniper Lee stars 11 year old Juniper Lee who is tasked with keeping the balance between the human and magical realms.
- The Lion Guard is about a lion cub and his group of similarly aged friends protecting the Pridelands. Kion is gifted with the Roar Of The Elders at least. They become teenagers in the final season.
- Max of Mighty Max wasn't intended to be one. Skull Master just arose earlier than planned, forcing Virgil and Normal to get his destiny in gear before he had time to mature. As such, his acts of heroism are mostly through quick thinking and outwitting enemies rather than powers or fighting and he attempted a Refusal of the Call before accepting he didn't really have a choice.
- The two protagonists of Miraculous Ladybug, Marinette Dupain-Cheng and Adrien Agreste, who are both roughly 14-years-old, become superheroes who save the city on a near-daily basis.
- The protagonists of MeteoHeroes are a group of six kids that on their 10th birthday (their birthdays are all on April 22nd "Day of the Earth") obtain the power to control different weathers, and are assembled to protect the enviroment.
- Jenny is a teenage crime-fighting robot from My Life as a Teenage Robot.
- My Little Pony: Friendship Is Magic:
- Spike is a pre-teen dragon who is very dedicated to helping his pony friends.
- Apple Bloom, Sweetie Belle and Scootaloo are three young foals who are members of the Cutie Mark Crusaders.
- Season 8 introduces Sandbar, Yona, Gallus, Silverstream, Ocellus and Smolder, who are children of multiple species.
- Oh Yeah! Cartoons featured three shorts where the protagonist was a child superhero.
- The title character of "Thatta Boy", who gets the short end of the stick when his Older Sidekick Polly decides to become evil and set free all the criminals he captured.
- The title character of "The Tantrum", who uses crime-fighting as an outlet for his frustration at not getting what he wants.
- "Younstar 3" stars a super-powered boy named Youngstar, who fights crime alongside his grandfather Old Man and a Fembot named Shero.
- PAW Patrol 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 10-years-old.
- PJ Masks: Resolves around three 6-year-old Animal themed superheroes; Catboy, Owlette, and Gekko. From Season 2 onwards the show introduces more kid heroes that act as occasional backup members for the team; Armadylan, An-Yu (though she is a Were Dragon that is older than she looks) and Newton Star. Their enemies are also kids.
- The Powerpuff Girls:
- In the original The Powerpuff Girls (1998), the titular girls are 5-year-olds (physically, chronologically they're younger) who regularly fight villains and save their city.
- The reboot makes their ages harder to tell. They're at minimum eight according to the TV movie. Their long-lost sister Bliss is a teenager but is also a superhero.
- 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.
- Princess Natasha 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.
- Rainbow Brite seems no older than twelve, and the Color Kids seem similarly aged. They regularly fight evil.
- Randy Cunningham from Randy Cunningham: 9th Grade Ninja. He's a teenager and also the only one keeping the Sorcerer from taking over the world.
- ReBoot deconstructed it when Enzo took over Bob's role as guardian. He's nowhere near as good as Bob was and fails four episodes in, losing an eye in the process. One Time Skip later and Enzo is a cynical hair-trigger temper Anti-Hero who hates the kid he used to be, preferring to be addressed on a Last-Name Basis.
- Ryan Defrates Secret Agent: Ryan Defrates, who is roughly high school and is already working as a professional secret agent.
- Zak Saturday of The Secret Saturdays. Of course, in the second season finale, he's revealed to be the reincarnation of a malevolent, world-ending god...
- South Park: Often the day is saved by the boys Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormick, but played more traditionally in the Mysterion arc.
- Steven Universe stars Steven Quartz Universe, 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 Warriors, all of whom are ageless alien gemstones.
- The sequel series (Future) deconstructs the trope, revealing that everything Steven experienced has given him PTSD, and that saving the universe two years prior has left him an anxious wreck who's struggling to understand what to do with his life now that no one needs him to be the hero.
- Connie Maheswaran, who's canonically a year and a quarter younger than Steven, later becomes a full-fledged member of said team of Magical Girl Warriors after taking sword lessons from Pearl.
- Teenaged Lars also becomes one after he Took a Level in Badass in Season 5. To wit, he goes from a cowardly Jerkass to a Guile Hero and Space Pirate, as well as the Arch-Enemy of a high-ranking Homeworld Gem.
- Sadie also has a couple of Badass Normal moments, the most major being when she took down a giant, invisible corrupted Gem by herself, while already injured and armed with nothing but a crude wooden fish spear.
- Chiro, an average teenage boy, fits this trope in Super Robot Monkey Team Hyperforce Go!.
- The three main characters in Teamo Supremo are grade schoolers battling the forces of evil.
- The Teen Titans (2003) 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.
- The Teenage Mutant Ninja Turtles, of course. Most prominently in Rise, which ages down Leo and Donnie to 14 and Mikey to 13 and has the turtles acting much more like teenagers than in any other installment.
- Dave, in the VeggieTales episode "Dave and the Giant Pickle." After all, it is a retelling of the story of David and Goliath.
- Wakfu has Evangyline (17), Tristepin/Sadlygrove (16), and Amalia (14). But the real standout is Yugo, who is 12 but defies some aspects of this trope by being more cheerful and positive, as well as *gasp* capable of handling Teleport Spam responsibly instead of just being a Bratty Half-Pint.
- Ivy and her brother Zach from Where on Earth Is Carmen Sandiego? are two teenagers tasked with tracking down and catching the world's best thief.
- The Guardians: Will, Irma, Taranee, Cornelia, and Hay Lin from W.I.T.C.H., who are also a team of Magical Girl Warriors.
- WordGirl. A 10-year-old superhero defends Fair City with her superpowers and exceptional vocabulary.
- Young Justice (2010) with occasional deconstruction. The kids go through all sorts of hell; some deal with it better than others.
- Zak Storm: The titular hero Zak Storm is 14 at the start of the series. Most of his crew are also not much older than he is.
