A siren from the DC Comics, based this character first made her debut back in 1992, when creators Paul Dini and Bruce Timm decided that it was too bizarre for the Joker himself to jump out of a pop out cake. He ended up doing anyways, but not before they had made a female sidekick/love interest. The inspiration for her costume came from Dinn’s college friend Arleen Sorkin, who performed a dream sequence wearing a jester costume in Days of Our Lives. Because of their history, Dinn easily incorporated aspects of her personality into the character. Quinn was also inspired by a mutual female friend’s “stormy but nonviolent relationship”, according to Timm.
A former psychiatrist falling in love with the thing she was trying to cure – utter madness. This character gives us insight into a twisted side of human nature, and shows us how easy it is to slip into this tunnel of madness.