Two-Face is a fictional comic book supervillain who appears in comic books published by DC Comics and is an enemy of Batman. The character first appeared in Detective Comics #66 (August 1942), and was created by Bob Kane and Bill Finger.
Two-Face was once Harvey Dent, the clean-cut district attorney of Gotham City and an ally of Batman. However, Dent goes insane after a Sal Maroni throws acid at him during a trial, hideously scarring the left side of his face. Dent adopts the "Two-Face" persona and becomes a crime boss, choosing to bring about good or evil based upon the outcome of a coin flip. Originally, Two-Face was one of many gimmick-focused comic book villains, plotting crimes based around the number two, such as robbing Gotham Second National Bank at 2:00 on February 2. In his autobiography, Batman creator Bob Kane claims to have been inspired by Robert Louis Stevenson's Strange Case of Dr Jekyll and Mr Hyde, specifically the 1931 film version which he saw as a boy. Kane had not read the novel when he and Bill Finger created Two-Face. Some inspiration was also derived from the pulp magazine character the Black Bat, whose origin story included having acid splashed in his face. In later years, writers have portrayed his obsession with duality and fate as the result of schizophrenia, bipolar and multiple personality disorders. He obsessively makes all important decisions by flipping a two-headed coin, one side scratched over with an X. The modern version is established as having once been a personal friend and ally of Commissioner James Gordon and Batman.
The character has appeared in multiple Batman media forms, including video games, animation, and the Batman film series. Billy Dee Williams portrayed Harvey Dent in Batman and Tommy Lee Jones portrayed Two-Face in Batman Forever during the Burton/Schumacher film series, while Aaron Eckhart and Richard Moll played both the district attorney and his villainous alter ego in The Dark Knight and Batman: The Animated Series, respectively.
Two-Face was ranked #12 in IGN's list of the Top 100 Comic Book Villains Of All Time.