Fictional serial killers

Doomsday is a fictional supervillain appearing in American comic books published by DC Comics, usually depicted as an adversary of Superman.

Sephiroth (Japanese: セフィロス Hepburn: Sefirosu) is a fictional character in the role-playing video game Final Fantasy VII developed by Square (now Square Enix), where he is the main villain.

Calendar Man (real name Julian Gregory Day) is a fictional supervillain appearing in American comic books published by DC Comics, as an enemy of Batman.

Theodore "T-Bag" Bagwell, played by Robert Knepper, is a fictional character from the American television series Prison Break.

Gabriel Gray, more commonly known by his pseudonym Sylar, is a fictional character and a primary antagonist of the NBC drama Heroes.

"Bluebeard" (French: Barbe bleue) is a French folktale, the most famous surviving version of which was written by Charles Perrault and first published by Barbin in Paris in 1697 in Histoires ou contes du temps passé.

The Mask is a Dark Horse comic book series created by writer Mike Richardson, the artist Mark Badger, John Arcudi and Doug Mahnke.

Tweedledum and Tweedledee are two fictional characters, a supervillain duo appearing in comic books published by DC Comics who were primarily known as enemies of Batman.

Eli Bard (born Eliphas) is a fictional character, a comic book supervillain from the Marvel Comics universe.

Carnage (Cletus Kasady) is a fictional supervillain appearing in American comic books published by Marvel Comics, usually as an enemy of Spider-Man.

Solomon Grundy is a fictional corporeal revenant (zombie) supervillain in the DC Comics universe and an antihero in the DC animated universe.

Dr. Hannibal Lecter is a character in a series of suspense novels by Thomas Harris.

John Kramer (also known as The Jigsaw Killer, commonly referred to as Jigsaw) is a fictional character and the main antagonist from the Saw franchise.

The Joker is a fictional supervillain created by Bill Finger, Bob Kane, and Jerry Robinson who first appeared in the debut issue of the comic book Batman (April 25, 1940) published by DC Comics.

Hush is a fictional supervillain appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman.

Thomas "Tom" Ripley is a fictional character in a series of crime novels by American novelist Patricia Highsmith, as well as several film adaptations.

Ra's al Ghul (Arabic: رأس الغول‎‎ Raʾs al-Ġūl; "Ghoul's Head" or "Demon's Head") is a fictional supervillain appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman.

Charles Lee Ray (also known as "The Lakeshore Strangler", and nicknamed "Chucky") is a character and the titular antagonist of the Child's Play horror film series.

Abattoir is the alias of Arnold Etchison, a fictional character in the DC Comics universe.

Omega Red is a fictional supervillain appearing in American comic books published by Marvel Comics, most commonly in association with the X-Men.

Misa Amane (Japanese: 弥 海砂 Hepburn: Amane Misa) is a fictional character in the manga series Death Note, created by Tsugumi Ohba and Takeshi Obata.

Light Yagami (Japanese: 夜神月 (ライト) Hepburn: Yagami Raito) is a fictional character and the protagonist of the manga series Death Note, created by Tsugumi Ohba and Takeshi Obata.

Killer Croc is a fictional supervillain appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman.

Sabretooth (Victor Creed) is a fictional character appearing in American comic books published by Marvel Comics, most commonly in association with the X-Men.

The entity referred to most frequently as The Man in Black (referred to as The Smoke Monster by the main characters) is a fictional character and the main antagonist on the American ABC television series Lost.

Amanda Young is a fictional character in the Saw franchise.

For the EastEnders character, see Dotty Cotton Kirsty Cotton is a fictional character from the Hellraiser series of films.

Rafferty was a fictional assassin from the Malibu Comics' Ultraverse imprint.

Reaper is the name of three characters in the DC Comics universe.

Redstone is the name of two characters from Marvel Comics.

Richard Charles Hillman is a fictional character in the British television soap opera Coronation Street, played by Brian Capron.

Vincent Clarkson, also known by the alter ego Valerie Davis, is a fictional character on the American soap opera Passions, which aired on NBC from 1999 to 2007 and on DirecTV in 2007–08.

Weasel is the name of 2 DC Comics supervillains.

The Gormogon is a fictional character featured in a story arc of Season 3 of the FOX drama Bones.

Killer Bob (or simply Bob) is a fictional character in the ABC television series Twin Peaks.

Leland Palmer is a fictional character from the television series Twin Peaks, created by David Lynch and Mark Frost.

Arthur Mitchell, often referred to as the "Trinity Killer", is a fictional character in the Showtime TV series Dexter.

Alberto Falcone is a fictional comic book villain appearing in books published by DC Comics, in particular the Batman books.

Kevin is a fictional character in Frank Miller's graphic novel series Sin City, featured prominently in The Hard Goodbye.

The Four Horsemen are a fictional group from Highlander: The Series based on the Biblical Four Horsemen of the Apocalypse.

Joseph James "Joey" Henderson is a fictional character on the New Zealand soap opera Shortland Street who was portrayed by Johnny Barker from mid-2007 to early 2008.

John Stape is a fictional character from the British soap opera, Coronation Street, played by actor Graeme Hawley.

Philip Janet Maybe is a fictional character in the 2000 AD comic strip Judge Dredd.

Soraya Montenegro is a fictional character in the Mexican telenovela María la del Barrio.

Catman is a modern version of a fictional character in comic books published by DC Comics who was initially a supervillain and arch-rival of Batman (although in recent years has developed into a more capable and antiheroic figure).

Lindsey Helen Roscoe (also Butterfield) is a fictional character from the British soap opera Hollyoaks, played by Sophie Austin.

Lifeform is a fictional character, a supervillain appearing in American comic books published by Marvel Comics.

Hannah McKay is a fictional character portrayed by Yvonne Strahovski, in the seventh and eighth seasons of the Showtime television series Dexter.

Film Freak is the name of two DC Comics villains and enemy of Batman and Catwoman.

The Trickster is a moniker used by three DC Comics supervillains, two of which are enemies of the Flash.

Judge Holden is purportedly a historical person, a murderer who partnered with John Joel Glanton as a professional scalphunter in the mid-19th century.

Ogre is a fictional supervillain that appears in comic books published by DC Comics.

Serge A. Storms is the main fictional character in most of Tim Dorsey's novels (and appears in all of them to date).

The Harbinger of Justice is a signature character used as a prominent example in the roleplaying game Dark Champions.

Francis Dolarhyde is a fictional character and the primary antagonist of Thomas Harris' 1981 novel Red Dragon.

Patrick Bateman is a fictional character, the protagonist and narrator of the novel American Psycho by Bret Easton Ellis, and its film adaptation.

Shriek is a fictional character, a supervillainess in the Marvel Comics universe.

Red John is a fictional character and the primary antagonist of the CBS crime drama The Mentalist for the first five seasons and half of the sixth.

Nico Bradley (previously Blake) is a fictional character in the British television soap opera Hollyoaks, played by Persephone Swales-Dawson.

Ben Weston is a fictional character from Days of Our Lives, an American soap opera on the NBC network, currently portrayed by Robert Scott Wilson.

Scar (スカー Sukā), also known as Scarred Man (傷の男 Kizu no Otoko), is a fictional character from the Fullmetal Alchemist manga series and its adaptations created by Hiromu Arakawa.

Sin-Eater is a name given to several fictional characters appearing in books published by Marvel Comics, usually those featuring Spider-Man and Ghost Rider.

Professor Pyg is a fictional supervillain in DC Comics and an enemy of Batman and Robin.

Quex-Ul is a fictional character appearing in DC Comics Superman titles.

Negan is a fictional character in the comic book series The Walking Dead.

Legion is a fictional supervillain in the DC Comics universe.

The Mist is the name of two DC Comics supervillains, archenemies of the original and 1990s Starman.

Onomatopoeia is a DC Comics supervillain and enemy of Green Arrow and Batman.

The Scourge of the Underworld is the name of a series of fictional characters appearing in American comic books published by Marvel Comics.

Kevin MacTaggert, best known as Proteus and also called Mutant X, is a Marvel Comics character, associated with the X-Men.

Whiteface is a fictional comic book supervillain in Marvel Comics.

Achebe is a fictional character appearing in American comic books published by Marvel Comics.

André DiMera is a fictional character from the original NBC Daytime soap opera, Days of Our Lives.

It, also known as Pennywise The Dancing Clown or Bob Gray, is the title character and main antagonist of Stephen King's 1986 horror novel It.

Infinity-Man is a fictional character, an extraterrestrial superhero published by DC Comics.

Tobias "Toby" Alexander Mills is a fictional character from the long-running British Channel 4 soap opera Hollyoaks, played by Henry Luxemburg.

Headsman is a fictional character appearing in American comic books published by Marvel Comics.

Mister X is a fictional character, a supervillain of the Marvel Universe introduced in Wolverine #159 (February, 2001).

Diego Alcazar is a fictional character from General Hospital, an American soap opera on the ABC network.

Digger (Roderick Krupp) is a fictional character appearing in American comic books published by Marvel Comics.

The Dollmaker is a supervillain persona that is used by characters appearing in American comic books published by DC Comics.

Dwarfstar is a fictional character, a DC Comics supervillain introduced by Gail Simone in All-New Atom # 2.

Everyman (Larry Ekler) is a fictional character appearing in American comic books published by Marvel Comics.

The Corinthian is a fictional character in Neil Gaiman's comic book series The Sandman.

The Mad Dog is the name of four fictional characters in the DC Comics universe.

Chris Keller is a fictional character on the HBO series Oz, portrayed by Christopher Meloni from 1998 to 2003.

James "Jim" Gordon Jr.