Bully Hunters in Western Animation.
- Sonic the Hedgehog is known for standing up for his animal friends and believing in fighting bullies both big and small. This is more apparent in the Adventures of Sonic the Hedgehog where he stops Robotnik's robot thugs from victimizing the population of Mobius as much as stopping Robotnik's much grander "bullying".
- On American Dad!, Stan starts bullying Steve in an attempt to make the boy more assertive. After weeks of being beaten senseless, Steve does learn a lesson on taking action for himself, but not the one Stan hoped. Steve hires Stelio Kontos, Stan's former high school bully, off of Facebook to beat the ever-living daylights out of Stan until he agrees to leave him alone.
- Avatar: The Last Airbender: This fuels the climax of the episode "Zuko Alone". While Prince Zuko can at times be unnecessarily harsh to those subordinate to him and has entitlement issues, they come exclusively from his determination to regain his father's love and his trauma from said father's abuse. Having seen the cruelty of both his father and his younger sister, he has nothing but contempt for those who pick on others weaker than themselves just for the sake of cruelty and/or a feeling of power, as he tells to the soldiers that kidnapped a boy whose brother was just captured right before fighting them to free the boy. This adds further fuel to his eventual Heel–Face Turn, as he comes to see the larger picture of his father leading a bullying Fire Nation in a war of conquest against the other, weaker nations.
- Deconstruction in the Batman Beyond episode "Payback" features a masked Vigilante Man who specifically targets adults (parents/teachers/bosses) that bully various teenagers in Gotham City. It is revealed that Payback is the son of a doctor at a local youth counseling center, who was depressed that his father was spending too much time counseling other teenagers and neglecting him.
- On Batman: The Brave and the Bold, this was apparently The Music Meister's origin story. Given that we see him attempt Psychic-Assisted Suicide at one point, this probably didn't end well for the bullies."Bullies used to pick on me because I sang in choir,
But something very strange occurred when I kept singing higher.
The ruffians around me quickly fell into a trance,
And it was then, with wicked glee, I made those puppets DANCE!" - Ben 10: Ben Tennyson is shown to be this during his Establishing Character Moment in the very first episode, as part of his general Chronic Hero Syndrome. He tries to intervene when he sees local bullies Cash and JT picking on a helpless kid but unfortunately, he lacks the strength to back up his heroism and gets hung by his underwear alongside the kid he was trying to help. At the end of the episode, however, Ben uses his newfound alien powers to pay the bullies back in the exact same way.
- Louise Belcher of Bob's Burgers has stood up to bullies who pick on weaker kids. For that matter, she's defended older sister Tina from mean girls.
- Bugs Bunny tended to be a fairly good-natured fellow who didn't actually seek out bullies, but if he was provoked, or if he saw it happening, he'd take it upon himself to put a stop to it. In fact, they even had to create a new character to avert the He Who Fights Monsters danger the trope often runs into; though Elmer Fudd versus Bugs Bunny is an iconic rivalry, the factors that made it famous meant that there were actually very few Bugs vs. Elmer cartoons: Bugs is simply so much smarter than his would-be murderer that Elmer's threat is completely defused and Bugs starts to look like the bully. So they created Yosemite Sam, who was (relatively speaking) much smarter than Elmer and far more belligerent so that Bugs could have someone to face off against who wouldn't take too much audience sympathy from Bugs. Yosemite Sam, however, had started gaining audience sympathy as he was never seen doing any actual bullying (just boasting and grandstanding), and Marvin the Martian was created to face Bugs, whose threat was actually shown onscreen and never underwent Badass Decay.
- The Bugs Bunny cartoon "Rabbit's Kin" plays this trope perfectly; when a frightened baby rabbit ducks into Bugs' hole to evade Pete Puma, Bugs rallies to the young rabbit's defense.
- Poindexter, the ghost of a bullied nerdy teen who lived in the '50s, in Danny Phantom, who now as a ghost targets him when he thinks Danny is bullying Jerk Jock Dash Baxter.
- Ed, Edd n Eddy: Though Sarah can be a bully herself, if you screw with Jimmy while she's around, she will make you pay. Jimmy even exploits this at times. A good example is in the episode "Ed In A Halfshell" when he lies to Sarah about how the Eds forced him to eat dirt all day.
- The Fairly Oddparents: In one of the earliest episodes of the show, Timmy wants to be this when he's a grown-up, and after wishing himself adult, he tries to stop Francis from beating up AJ and Chester. Unfortunately, this backfires when Francis pulls a Wounded Gazelle Gambit and starts crying in front of two cops, who see a grown man harassing a kid and throw Timmy in jail.
- Deconstruction on an episode of Family Guy: Peter Griffin enlists Chris's help in scheming against a bully who had tormented him many years ago; the former bully is now a reasonable adult who doesn't really remember what he used to do as a kid and is now disabled due to suffering from multiple sclerosis (which Peter misinterprets as "monkey scrotum"). When they finally track the guy down, Peter threatens and taunts the other guy before ordering Chris to take him out. And then Chris.... beats the living snot out of Peter, driving him to tears. Peter demands to know why his son has beat him. Chris replies, in a Moment of Awesome, that "you taught me to stand up to a bully — and I'm standing up to you."
- Just so this makes sense to those who don't understand, Chris was being bullied by this kid who was stealing customers from his paper round, insulted and humiliated him, etc. When Peter confronted the little punk, the kid starts insulting and cracking jokes about Peter, a fully grown man who gets into glorious fistfights with a giant chicken, when he was trying to be civil, resulting in Peter beating him into unconsciousness. When he apologizes, the kid convinces him that it's fun to hurt people, so Peter started bullying everyone, from his family to his friends to his paraplegic cop neighbor. He decided to hunt down his own former tormentor when he realized it was his fault for why he was acting so dickish, only to find out he now has MS and is unable to walk by himself. Peter doesn't know what that is (confusing it for a Monkey Scrotum) and attacks the man on crutches so Chris beats him up to stop him.
- In another episode, Peter tracks down Connie D'Amico, Meg's Alpha Bitch high school bully, and smashes her face repeatedly through a fire extinguisher. In yet another episode, Lois does the same thing.
- An episode of Fillmore! had the safety patrol tracking down someone targeting bullies for humiliation, ending with An Aesop about there being better ways to deal with bullies.
- Adam West did this in an episode of Johnny Bravo.
- A cut scene from So the Drama has Kim Possible comment that she could beat up on the Alpha Bitch, but doing that is beneath her. Still, she teaches sensitivity training to boys picking on Ron and as a 4-year-old beat up pre-K versions of Drakken, Killigan, and Monkey Fist. The one time it looked like she had been pushed to the point of attacking Bonnie, it ended up with Bonnie breaking down crying at the prospect of Kim justifiably thrashing her.
- In A Sitch in Time, it is revealed that when Kim and Ron first met in kindergarten, Kim was tormented by bullies (actually de-aged versions of Drakken, Monkey Fist, and Duff Killigan travelling back through time to demoralize her before she could become a heroine) but Ron came to her defense. When the kid villains turned their attention to Ron, Kim shouted "Hey, Bullies!" and proceeded to send them packing. In the wake of her taking on the bullies that plagued her and Ron, a friendship was born...
- My Little Pony: Friendship Is Magic:
- Rainbow Dash will stick up for others if they're being picked on. For example, in flight camp, she defended Fluttershy from a duo of bullies after the latter tripped while trying to fly through a cloud ring.
- The aesop of "One Bad Apple" was that one should stand up to, and otherwise deal with, bullies without stooping to their level. It failed abysmally, instead implying that fighting back made you as bad as the bully.
- Ninjago: A flashback reveals Cole was this at school. His mother first seems exasperated when she learns he got into a fight, but she quickly asks him to promise that he will never stand down when others need defending.
- Charlie Brown gets a softer version of this in the special He's a Bully, Charlie Brown, adapted from a series of strips. Rerun gets all his marbles stolen by Joe Agate, a classmate who didn't tell him until after the game was over that they were playing for "keeps". Charlie Brown gets them back in record time.
- In The Simpsons episode "Bart the General", Bart Simpson doesn't just go bully hunting, he does it on a grand scale with the entire class ganging up on Nelson and his gang, complete with aid from Grandpa and Herman. He even goes far enough to get Nelson to sign a treaty saying he "respects Bart's right to exist."
- The trope is even explicitly invoked in an earlier scene when Bart angrily confronts a Mook who has stolen his sister Lisa's cupcake. Despite Lisa trying to warn him that the Mook works for Nelson, Bart tries to pummel the thug into submission, gets hauled off the floor, throws a wild punch without looking — and soon discovers that he has swung right at Nelson's face, bloodying it! Once Nelson realizes that it's his own blood he's tasting and not that of a victim, he immediately burns with hatred for Bart and warns him that he's now as good as dead. But Lisa is proud of her brother for being so brave and points him out to the entire school as "Bart the Bully-Killer" — a moniker that Bart would just as soon not have.
- South Park:
- Mysterion beats the crap out of a girl who was about to beat up Karen McCormick.
- Deconstructed in "Butterballs". Stan Marsh creates an anti-bullying video but uses it to attain fame instead of helping people. The type of bullying in his movie revolves around bullying at school, not general bullying like Domestic Abuse or bullying in the workplace. Several people who claim to be against bullying have turned out to be bullies themselves, showing how anyone, not just children, can become one for whatever reason and hardly anyone is any better than a real bully.
- SpongeBob SquarePants: Though Squidward Tentacles can be a bit of a bully himself at times, he can be this to SpongeBob on his better days. In one episode, when SpongeBob is cruelly insulted by an Unsatisfiable Customer simply because his pizza didn't come with a drink, Squidward immediately confronts the customer and slams the pizza in his face.Customer: Another one?! Look, I told your little buddy I ain't paying for that!
- Though she may sometimes get exasperated by their antics, Sandy Cheeks will always stand up for SpongeBob and Patrick. In Hot Crossed Nuts, Mr. Krabs adds Sandy’s barbeque nuts to the menu, and coldly dismisses SpongeBob and the Krabby Patties. Upon seeing SpongeBob's heartbroken reaction, and Mr. Krabs' callous indifference, Sandy retaliates by resigning and taking her barbeque nuts off the menu at the worst possible time. Not only that, but in Patrick! The Game, Squidward has been mocking Patrick's attempts at making his own game. When he tries to do so at the Game Night, Sandy shuts him up and coerces him into joining in whenever he doesn’t make an effort.
- Various characters of Thomas & Friends are played this way if Laser-Guided Karma doesn't catch up to the rude and mean engines. Whenever there's an engine that is usually big and orders others around, there will be another engine to help the victim in playing tricks on the teasing engines (i.e. Duck helped Percy to get back at Gordon, Henry, and James for ordering them around in "Duck Takes Charge"). The Troublesome Trucks aren't safe from these engines either as they would mostly be in the receiving end of being bumped or broken if they tease the other engines (i.e. S.C. Ruffey in "Toad Stands By").
- In Thunder Cats 2011, Catfolk Rebel Prince Lion-O gradually becomes this, as he disapproves of Thundera's Fantastic Racism and sometimes sticks up for other species. This tends to get him in trouble, first attracting the ire of several thugs in the slums of Thundera after he witnesses them beating up a Dog, then almost getting killed by an Angry Mob after he tried to defend a pair of captured Lizards from them. He eventually actively engages in bully hunting, taking up a predatory Master Swordsman's challenge in hopes of defeating him.
- In the Tom and Jerry cartoon "Neapolitan Mouse", while Tom pursues Jerry through the streets of Naples, an Italian mouse beats up Tom, clearly upset to see a big mean cat picking on a little mouse. He then takes down some mean dogs that were harassing Tom, for similar reasons.
- The only reason the violent, foul-tempered Dinobots of The Transformers are loyal to the Autobots is that the only thing they hate more than weaklings are those who abuse their strength.
- The first episode of X-Men: Evolution establishes Scott as this, and the bulk of his rivalry with Jerk Jock Duncan is motivated out of Duncan's casual bullying (the rest is because Duncan is dating Jean, Scott's best friend and eventual love), while his intense dislike of the Brotherhood comes down to their tendency to act like jerks to people. Later episodes give this trait to just about everyone once mutants are revealed (Though understandable since it's, you know, them who're being picked on). Special note should go to Rogue, who on two different occasions drives off bullies harassing one of her teammates because of their mutant status (first Scott, with the help of Kitty, though as Scott showed a few seconds ago, he didn't need it, and secondly Evan, who also didn't need it but needed someone to drive them off before he did something stupid).
