An Arkham Asylum psychiatrist, who begged and eventually convinced her superiors to treat The First Appearance, Batman: Harley Quinn #1 (October 1999)
A Blackgate and Arkham Asylum psychiatrist assigned to treat the Joker, Dr. Harleen Frances Quinzel instead became obsessively fixated on her patient, believing herself to be in love with him. Batman: Arkham Origins Blackgate Edit. Harleen would eventually come to the newly.