Harley Quinn, real name Dr. Harleen Frances Quinzel, is a former psychiatry intern and criminal who's known for her flamboyant supervillain/anti-hero persona. She was the Joker's sidekick and on-off girlfriend, although she's since struck out on her own. She first appeared in DC Films' Suicide Squad as a member of Task Force X and is currently the main protagonist of DC Universe's animated Harley Quinn franchise and its adult-theme comedy series. She often works with her friends Poison Ivy and Catwoman.