Harleen Frances Quinzel (who uses the criminal alias "Harley Quinn") is one of the Gotham Sirens and is known for her associated with the clown prince of crime, The Joker. A former doctor who used to treat patients at the very Asylum she is now an inmate of.
Batman: The Animated SeriesEdit
- 18 January 1993 "Harley and Ivy" production number 56
- 15 October 1994 "Harley's Holiday" production number 81
Superman: The Animated SeriesEdit
- 4 October 1997 "World's Finest, Part 1" production number 39