Margot Robbie (MOVIE: Suicide Squad) Harleen Quinzel / Harley Quinn - Harley Quinn (Harleen Frances Quinzel) is a fictional supervillain appearing in American comic books published by DC Comics. A crazed supervillain and former psychiatrist. Producer Richard Suckle described the character as "a fan fave. Funny, crazy, scary. ... You can't come up with enough adjectives to describe all the different things you see her do." Robbie described Quinn as one of the Suicide Squad's most manipulative members, and her relationship with Joker as "incredibly dysfunctional", adding that Quinn is "mad about him—like, literally, mad. She's crazy. But she loves him. And it's a really unhealthy, dysfunctional relationship. But an addictive one." Harley Quinn is the frequent accomplice and lover of the Joker, whom she met while working as a psychologist 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.