Poison Ivy, also known simply as Ivy, is a fictional character appearing in American comic books published by DC Comics, commonly in Batman stories. She was created by Robert Kanigher and Carmine Infantino, and first appeared in Batman #181.
The Elizabeth Arkham Asylum for the Criminally Insane, commonly referred to as Arkham Asylum, is a fictional psychiatric hospital/prison, named after the city of Arkham which appeared first in the stories of H. P. Lovecraft, and later appearing in American comic books published by DC Comics, commonly in stories featuring the superhero Batman. It first appeared in Batman #258, written by Dennis O'Neil with art by Irv Novick. The asylum serves as a (forensic) psychiatric hospital for the Gotham City area, housing patients who are criminally insane, as well as select prisoners with unusual medical requirements that are beyond a conventional prison's ability to accommodate. Its high-profile patients are often members of Batman's rogues gallery.
Harley Quinn is a character appearing in American comic books produced by DC Comics. She was created by Paul Dini and Bruce Timm for Batman: The Animated Series as a henchwoman for the supervillain Joker, debuting in its 8th episode, "Joker's Favor", on September 11, 1992. While intended to appear in one episode, Quinn became a recurring character within the DC Animated Universe (DCAU) as the Joker's sidekick and love interest, and was adapted into DC Comics' canon seven years later, beginning with the one-shot Batman: Harley Quinn #1. Quinn's origin story features her as a former psychologist at Gotham City's Arkham Asylum who was manipulated by and fell in love with the Joker, her patient, eventually becoming his accomplice and lover. The character's alias is a play on the stock character Harlequin from the 16th-century Italian theater commedia dell'arte.
The Mad Hatter is a supervillain appearing in comic books published by DC Comics, commonly as an adversary of the superhero Batman. He is modeled after the Hatter from Lewis Carroll's novel Alice's Adventures in Wonderland, a character often called the "Mad Hatter" in adaptations of Carroll. A scientist who invents and uses technological mind control devices to influence and manipulate the minds of his victims, the Mad Hatter is one of Batman's most enduring enemies and belongs to the collective of adversaries that make up Batman's rogues gallery.
Killer Croc is a supervillain appearing in American comic books published by DC Comics. Created by Gerry Conway, Don Newton and Gene Colan, the character was introduced in Batman #357. He has become one of the most enduring enemies of the superhero Batman and belongs to the collective of adversaries that make up his rogues gallery.
The Ventriloquist is the name of multiple supervillains appearing in American comic books and other media published by DC Comics. All of the Ventriloquist's versions are enemies of Batman, belonging to the collective of adversaries that make up Batman's rogues gallery.
Black Mask is a supervillain appearing in comic books published by DC Comics. Created by Doug Moench and Tom Mandrake, the character debuted in Batman #386. He is commonly depicted as a brutal and ruthless crime lord in Gotham City who has a fixation with masks and derives sadistic pleasure from the act of torture. Black Mask is one of the most enduring enemies of the superhero Batman and belongs to the collective of adversaries that make up his rogues gallery.
Firefly is a supervillain appearing in American comic books published by DC Comics. Created by France Herron and Dick Sprang, he made his debut in Detective Comics #184. Initially portrayed as a criminal who utilized lighting effects to commit robberies, Firefly was later reimagined as a sociopathic pyromaniac with an obsessive compulsion to start fires following Crisis on Infinite Earths' reboot of the DC Universe in the 1980s. This darker depiction of the character has since endured as one of the superhero Batman's most recurring enemies and belongs to the collective of adversaries that make up his central rogues gallery.
Maximilian "Maxie" Zeus is a supervillain appearing in American comic books published by DC Comics, primarily as a minor enemy of Batman. He is depicted as a mentally ill former history professor who is obsessed with Greek mythology and believes himself to be the god Zeus, becoming a crime lord in Gotham City.
Calendar Man is a supervillain appearing in American comic books published by DC Comics, as an enemy of the superhero Batman, belonging to the collective of adversaries that make up Batman's rogues gallery. Calendar Man is known for committing crimes that correspond with holidays and significant dates. He often wears costumes to correlate with the date of the designated crime. His name, in itself, is a joke, referencing both the Julian and Gregorian calendars. In his debut, the character was presented as a joke villain, but in later years, writers developed Calendar Man as a dark, disturbed serial killer who toys with Batman.
Kite Man is a supervillain appearing in comic books published by DC Comics who uses kite-based weapons to commit crimes. He is commonly depicted as an adversary of Batman. His name is an homage to Peanuts protagonist Charlie Brown, due to the latter character commonly being shown flying kites into trees. The character has been generally regarded as a joke in comparison with other supervillains, due to his dimwitted personality and laughable gimmick. However, with his appearance in the DC Rebirth arc "The War of Jokes and Riddles", Kite Man gained a reputation as a cult favorite character among fans, due to his tragic backstory, persistence and motivation to become a better villain, and his catchphrase "Kite Man, hell yeah!"
Originally created in 1967, the fictional comic book character Barbara Gordon has been adapted into various other forms of media. The character has appeared in both live action and animated television series and films, as well as in video games in her alter-egos as both Batgirl and Oracle.
The Joker, a supervillain in DC Comics and archenemy of the superhero Batman, has appeared in various media. WorldCat records over 250 productions featuring the Joker as a subject, including films, television series, books, and video games. Live-action films featuring the character are typically the most successful.
The Riddler, a supervillain in DC Comics and an adversary of the superhero Batman, has been adapted into numerous forms of media, including feature films, television series, and video games. The character has been portrayed in live-action by Frank Gorshin and John Astin in the 1960s television series Batman, Jim Carrey in the 1995 film Batman Forever, Cory Michael Smith in the 2014 Fox series Gotham, and Paul Dano in the 2022 film The Batman. Actors who have voiced the Riddler include John Glover in the DC animated universe, Robert Englund in The Batman, and Wally Wingert in the Batman: Arkham video games.
The Scarecrow, a supervillain in DC Comics and an adversary of the superhero Batman, has been adapted in various forms of media, including films, television series and video games.
The character Two-Face was created by Bob Kane and first appeared in Detective Comics #66. However, he did not appear outside comics until half a century later in Batman: The Animated Series. Two-Face has since been substantially adapted from the comics into various forms of media, such as feature films, television series and video games. Two-Face has been voiced by Richard Moll in the DC Animated Universe, Troy Baker in the Batman: Arkham series, Billy Dee Williams in The Lego Batman Movie, and William Shatner in Batman vs. Two-Face. His live-action portrayals include Billy Dee Williams in Batman (1989), Tommy Lee Jones in Batman Forever, Aaron Eckhart in The Dark Knight, and Nicholas D'Agosto in the television series Gotham. In 2009, Two-Face was ranked #12 on IGN's list of the Top 100 Comic Book Villains of All Time.
The fictional supervillain Penguin, created by Bob Kane and Bill Finger, made his first appearance in Detective Comics #58. Since then, he has been adapted into other forms of media, including feature films, television series, and video games.
Mr. Freeze was originally a comic book character and Batman's adversary, but has been substantially adapted from the comics into various forms of media, including feature films, television series, and video games. The character has been portrayed in live-action by George Sanders, Otto Preminger, and Eli Wallach in the Batman television series; by Arnold Schwarzenegger in the 1997 film Batman & Robin; and by Nathan Darrow on the Fox crime series Gotham. He has also been voiced by Michael Ansara in the DC Animated Universe and Maurice LaMarche in the Batman: Arkham video game franchise.
The Bookworm is a fictional criminal in the DC Universe, and an adversary of the superhero Batman. He was created for the Batman 1966 television series and was played by Roddy McDowall, but has since made his way into the comics.
