Harley Quinn is a fictional character appearing in American comic books published by DC Comics. The character was created by Paul Dini and Bruce Timm and first appeared in Batman: The Animated Series in September 1992.
Harley Quinn is a former psychiatrist who becomes infatuated with the Joker and eventually becomes his lover and accomplice. She is often depicted as a playful and unpredictable villain with a twisted sense of humor.
Harley Quinn has become one of DC Comics' most popular characters and has appeared in various comic books, animated series, and films. She has also been portrayed by Margot Robbie in the DC Extended Universe films.