Two-Face is a character who appears in American comic books published by DC Comics. Two-Face was created by Bob Kane and first appeared in Detective Comics #66 (August 1942). Two-Face is one of the most enduring enemies of the superhero Batman, and belongs to the collective of adversaries that make up Batman's rogues gallery. Kane was inspired by Robert Louis Stevenson's Strange Case of Dr Jekyll and Mr Hyde (1886) and its 1931 film adaptation in creating the character; while the creation credits for some similar Batman-related characters are disputed, Two-Face is generally agreed to have been Kane's brainchild alone.
In the DC Universe continuity, Two-Face's real name is Harvey Dent, initially Gotham City's upstanding district attorney and a close ally of Batman and Commissioner Gordon. After mob boss Sal Maroni throws acidic chemicals at him during a court trial, Dent is severely disfigured and goes insane, becoming a criminal obsessed with the number two, the concept of duality, and the conflict between good and evil. Two-Face makes all important decisions by flipping his former lucky charm, a two-headed coin which damaged on one side. Writers have portrayed Two-Face's obsession with chance and fate as the result of schizophrenia, bipolar disorder, and dissociative identity disorder.