Toyota from Y: The Last Man makes a point of being as unpleasant as possible to everyone she comes into contact with, as if sticking swords through them (not to mention cutting Ampersand's tail) wasn't enough.
In Big Foot Bill, the titular character counts as one. Despite his mostly-friendly nature, he can be at times very harsh towards the other cryptos.
While Bigfoot Bill tries to escape the Crypto-guards, he encounters a slime creature who greets him. Bill immediately grabs the slime creature and pastes it onto one of the guard's face, blinding him.
While Lucy might have been the worst Jerk Ass in the Peanuts cartoons, Violet was the worst Jerk Ass in the comic. She constantly abused Charlie Brown both verbally and physically, and once firmly declared that he had no redeeming qualities whatsoever.
Lucy was, however, a bit of a brat. Once she even told everyone Charlie Brown was hitting her when he hadn't, for no reason whatsoever (in a Sunday strip from November '52). She also teases and bullies her little brother Linus without stopping, forces respect out of other kids through sheer intimidation, and uses Charlie Brown's "sessions" at her booth as an excuse to make him feel even worse about himself. And that's not even getting into the annual football gag, which seems meaner every time she does it. (most infamousy in the animated special It's Your First Kiss, Charlie Brown, where Lucy keeps that routine in an actual homecoming game, which predictably leads to the defeat of Charlie Brown's team... and worst of all, everyone blames Charlie Brown for it, Lucy most vocally, something that led to many angry letters complaining that even for how much Charlie Brown suffers, him being berated for something that was Lucy's fault was just too mean-spirited) Toward the end of the strip, she started taking on a surprisingly nurturing role toward Rerun, softening up some.
Let's not forget Nermal either. He seems to visit Garfield purely to steal his food, rub it in Garfield's face that Nermal's cuter and younger than he is, use his cuteness to steal Jon's affection and con him into giving Nermal food, and after all that still seems to think that Garfield likes him. Thankfully, Garfield always makes him pay for it.
King Max Acorn, with everything he's gone through, had devolved into this. A big part of his assholishness is because he was raised to follow royal traditions. That also includes using a mystical golden pool with a strange, undefined connection to make his decisions instead of, say, the guy you hired to be part of your Intelligence Agency. Thus, most of his decisions boil down to "because the pool told me to", including but not limited to disbanding your daughter's well-trained team of heroes over his just-recently formed Secret Service and forcing said daughter to marry someone she really didn't want to.
Sonic in Sonic the Comic is one, he picks on Tails for no reason,(constantly calling him an idiot),is a dick towards his friends, and once made Porker Lewis cry◊.
Kenton's father Praxton in White Sand. He constantly puts his son down, treats Kenton's new ideas with disdain, argues that brute force is the only way for a Sand Master to be successful, mocks the idea of using a sword, laughs at Kenton's inability to slatrify and states that even if Kenton accomplishes Mastell's Path, Praxton still won't promote him above the lowest rank, which is just blatantly unfair. Later, when Kenton is on the Path, he mocks him from above for not "gliding elegantly on the sand" like Sand Master should. That's not to mention that he's engaged in a shouting match with his son in front of all the Sand Masters in their order.
Plutona: Ray is a bully who insults everyone around him - except for his abusive father.
Dynamo5 : This series does not paint a good picture of Captain Dynamo/William Warner. It was revealed in the series that he was a habitual womanizer who cheated on his wife, Maddie Warner, and fathered numerous children, even when it compromised his crime-fighting duties. He used his shape shifting power to impersonate women's husbands in order to sleep with them. He had a relationship behind his wife's back with Chrysalis one of his Arch Enemies, and even fathered a daughter with her, Cynthia, who inherited all of Dynamo's powers, and goes by the code name Synergy. According to Chrysalis, Dynamo was a presence in Synergy's life, and led a second life behind Warner's back as he helped to raise her. Unknown to Chrysalis, he was cheating on her as well. Finally, we learn that he fathered a child with an alien woman that he had met in outer space, after coming to the aid of her malfunctioning starship. Because of the taboo of raising a half-breed on her world, she came to Earth to give custody of their son to Dynamo. Because he viewed the child as a threat to his marriage, he left the infant at a F.L.A.G. research facility, where the child grew up without parents. When he began to bond with Dr. Bridges, one of the scientists there, the two were separated, and Dynamo refused Bridges' pleas to free the boy from the facility.
It's rare to find another Autobot who likes Prowl. He spent ten issues of The Transformers: Robots in Disguise under the control of Bombshell, one of the resurgent Decepticons, and nobody noticed. Even Optimus Prime doesn't like him much. The Constructicons, on the other hand, like him quite a lot. He finds this disturbing.
Chromia: Millions of years of civil war and no one killed that guy?
Jupiter's Circle: Walter is shown to have always been a prick, calling Bluebolt a "homo" and brainwashing Sunny into loving him.
Star Wars: Invasion: Captain Ogden is presented mainly as a pompous, unhelpful and snide jerk who keeps getting in the way of the main characters' attempt to rescue refugees and fight the Vong.
Astro City has the Point Man, the obnoxious Guy Gardner-like 1980s anti-hero.
Tatiana's landlady, who immediately demands that she get rid of the puppies that her dog gave birth to because "[she] won't have mongrels in this house!"
Mikhail, a mean kid with a short fuse who bullies his cousin Liliana, explodes at his friends, and rejects Kudryavka the dog when she tries to show affection to him. It runs in the family—both of his parents are short-tempered and his father is physically abusive.
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