Harley Quinn is a character appearing in American comic books published by DC Comics. Quinn was created by Paul Dini and Bruce Timm as a comic relief henchwoman for the supervillain Joker in Batman: The Animated Series, and debuted in its 22nd 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 as the Joker's sidekick and love interest.