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Intro. Dr. Harleen Frances Quinzel is a DC Comics supervillain and later antiheroine who first appeared in the 1992 Batman animated series and was later adapted into comics. She is close friends with Poison Ivy and Catwoman. The character's alias is derived from her real name, Harleen Quinzel, as an association with the word "harlequin".

Harley Quinn

@Damon Salvatore