Carnage
Carnage (Cletus Kasady) is a fictional supervillain appearing in American comic books published by Marvel Comics, usually as an enemy of Spider-Man. He first appeared in The Amazing Spider-Man #361 in April 1992. Carnage is the offspring of the Venom symbiote and is infamous for his violent, homicidal... read more You thought Venom was bad, well, this symbiote with a psychotic serial killer went super-psychopath when he goes on a major killing spree. Spider-Man did have a hell of a time defeating this maniac.
Harley Quinn
Harley Quinn is a fictional character appearing in American comic books published by DC Comics. She was originally introduced as the Joker's sidekick in Batman: The Animated Series before becoming a prominent character in her own right. Over time, she evolved into an antiheroine and has appeared in... read more She was good in Suicide Squad, but by far the best version of Harley Quinn is the Batman: TAS version, always cheerful but also a very tragic character.
"What's that? I should kill everyone and escape? Sorry, it's the voices," that should pretty much say everything.
"We're bad guys, it's what we do."
She's awesome!
The Joker
The Joker is a fictional supervillain created by Bill Finger, Bob Kane, and Jerry Robinson, who first appeared in Batman #1, released on April 25, 1940, by DC Comics. Credit for the Joker's creation remains disputed. Both Kane and Robinson claimed responsibility for his visual design, while Finger is... read more He is the textbook definition of insanity. He kills thousands of people just for a laugh, and to break Batman psychologically.
Green Goblin
Goblin serum can mess up your mind, even the father and son of the Osborns have fallen into loose cannons after injecting the serum.
Negan
Negan is a fictional character from the comic book series The Walking Dead and is portrayed by Jeffrey Dean Morgan in the American television series of the same name. He is introduced as the ruthless leader of a group called the Saviors. Negan becomes a major antagonist in both the comic and television... read more For the man with many F words coming out of his mouth, making sex jokes and having his barbed-wire baseball bat Lucille on his side, Negan doesn't keep things civilized for people, and he wants everything for himself. He even swung batta swing Glenn to death with his Lucille in the comics.
Purple Man
For this deviant purple dude, he did pull the nasty score big time when he mind-controls Jessica Jones for months to do psychological awful abuse, including controlling her to strip her clothes off.
Professor Pyg
Professor Pyg, also known as Lazlo Valentin, is a fictional supervillain in DC Comics. He is known for his obsession with perfection and for wearing a disturbing surgical mask. First appearing in Batman #666 in 2007, he often appears as an enemy of Batman. A sick bastard wearing a pig mask who loves to cut people up and torture them, but he's no match against Batman.
Hal Jordan (Parallax)
That time when Green Lantern Hal Jordan loses his mind after the destruction of Coast City and went nuts when he started killing his Green Lantern Corps pals.
Mad Hatter
Arcade
The last time I checked, this delusional sleuth tries to get teenage superheroes killed in the Avengers Arena story arc. It turned out to be the ruthless ways of survival in a place Arcade called "Murderworld". X-23 was among those teens, and it didn't go well for her thanks to this Jigsaw-Willy Wonka creep.
The Newcomers
? Homelander
? Hela
The Contenders
The Governor
The Governor is a fictional character and a primary antagonist in The Walking Dead comic book and television series. He is portrayed as the ruthless leader of the fortified community of Woodbury. His character is known for complex moral ambiguity and plays a significant role in the series' plot development... read more Watching zombie heads in fish tanks, taking care of his zombie daughter, collecting zombies, killing his own people who failed on a job, and forcing people to fight each other surrounded by zombies for a game sport made the Governor this way.
Victor Zsasz
Scarecrow
The Scarecrow is a fictional supervillain appearing in American comic books published by DC Comics. He is commonly portrayed as an adversary of the superhero Batman. Created by Bob Kane and Bill Finger, the character first appeared in World's Finest Comics #3 in 1941.
Reverse Flash
Reverse-Flash is a name used by multiple fictional supervillains in American comic books published by DC Comics. Each version of the character serves as a major enemy of the superhero The Flash. The most well-known Reverse-Flash is Eobard Thawne, a time-traveling scientist from the future.
Two-Face
Two-Face/Harvey Dent is a fictional villain from DC Comics. Harvey Dent was one of Gotham's most trusted citizens until he had acid poured on his face making him go insane and become a criminal by the name Two-Face. In film, he has been portrayed by Billy Dee Williams in Batman, Tommy Lee Jones in Batman... read more
Violator
Bullseye
Insane lunatic who just can't stop killing girlfriends and love interests. Even Elektra couldn't defeat this guy.
Venom
Venom, or the Venom Symbiote, is an alias used by several fictional characters in American comic books published by Marvel Comics, most commonly in association with Spider-Man. The symbiote is a sentient alien organism that bonds with human hosts, the most famous being Eddie Brock. Venom has appeared... read more
Superman
Superman is a fictional comic book character and arguably the first powerful superhero of the modern era. The character was created by writer Jerry Siegel and artist Joe Shuster, who were high school students in Cleveland, Ohio, in 1933. Superman first appeared in Action Comics #1, published by National... read more Superman is a crazy superhero. He wants to kill everyone he hates, even Batman. I don't like him.
The Injustice Superman was the insane one of the bunch. Read the Injustice comics to find out.
Superman is crazy. He wants to kill everyone he hates, even Batman.
Poison Ivy
Poison Ivy is a fictional supervillain appearing in American comic books published by DC Comics. She is commonly portrayed as an adversary of the superhero Batman. Known for her expertise in botany and toxicology, she uses plant-based toxins and mind-controlling pheromones as weapons.
Sabretooth
Sabretooth is a supervillain appearing in American comic books published by Marvel Comics, most often associated with the X-Men. He is particularly known as an enemy of Wolverine. Created by writer Chris Claremont and artist and co-writer John Byrne, the character first appeared in Iron Fist #14.
Superboy-Prime
Destroy entire Earths only to find his Earth-Prime...
Ultron
Ultron is a fictional supervillain appearing in American comic books published by Marvel Comics. He is widely recognized as a major adversary of the Avengers and has a complex connection with several team members, particularly his creator Hank Pym... read more
Killer Croc
Killer Croc is a fictional supervillain appearing in American comic books published by DC Comics. He is most commonly portrayed as an adversary of the superhero Batman. Known for his reptilian appearance and enhanced strength, Killer Croc has appeared in multiple Batman stories, animated series, and... read more
Catwoman
Catwoman is a fictional character appearing in American comic books published by DC Comics, commonly associated with the superhero Batman.
Catwoman has been featured in numerous media adaptations related to Batman. Actresses Julie Newmar, Lee Meriwether, and Eartha Kitt introduced her to a broad... read more Catwoman is very crazy. She wants to make crazy friends with everyone. She already made a friend with Batman.