<Li> Immunity to various toxins </Li> <Li> Utilizes weaponized props </Li> <P> Harley Quinn (Dr. Harleen Frances Quinzel) 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 . She later appeared in DC Comics's Batman comic books, with the character's first comic book appearance in The Batman Adventures #12 (September 1993). </P> <P> Harley Quinn is a frequent accomplice and lover of the Joker, whom she met while working as a psychiatrist at Gotham City's Arkham Asylum, where the Joker was a patient . Her name is a play on the name "Harlequin", a character which originated in the commedia dell'arte . The character has teamed up with fellow villains Catwoman and Poison Ivy several times, the trio being known as the Gotham City Sirens . Poison Ivy is known to be a close friend, sometimes lover, and recurring ally of Harley . Since The New 52, she is now depicted as an antihero and has left her past as a supervillain behind . Harley Quinn has also been depicted as a member of the Suicide Squad . </P>

When did harley quinn first appear in batman comics