Harley Quinn is a fictional character appearing in media published by DC Entertainment. She was created to serve as a supervillainess and a romantic interest for the Joker in Batman: The Animated Series. She has also teamed up with Poison Ivy and Catwoman as the Gotham City Sirens. In the New 52 comics, she has been depicted as an antiheroine and a recurring core member of the Suicide Squad. In most other media, she is still depicted as the Joker's girlfriend and his accomplice. She is a play on the name "Harlequin" which originated in commedia dell'arte.
Harley Quinn has a recurring role in the comic book series Suicide Squad. She sports two new outfits following the events of DC Rebirth. She is still officially done with the Joker in a romantic capacity and still Poison Ivy's on-again, off-again girlfriend. Harley Quinn becomes the leader of the Suicide Squad in issue #20, following Rick Flag's apparent death. The members of the team under Harley's leadership include Captain Boomerang, Deadshot, the Enchantress, Katana, and Killer Croc. The ongoing fifth volume of Suicide Squad shows Harley Quinn as an unpredictable and dangerous inmate at Belle Reve Penitentiary, attacking the facility's security forces when given the opportunity. The series may be a sequel to this series after Harley finishes her time on the Squad, after which she may have erased her criminal record.
Harley Quinn has become one of DC Comics' most popular characters. The 2016 relaunch of her comic shipped more copies than any other DC Rebirth title and was one of the best-selling comics of the year. Harley Quinn currently stars in four separate ongoing series, three eponymous titles and Suicide Squad. She was ranked 16th in Comics Buyer's Guide's 2011 "100 Sexiest Women in Comics" list. In 2016, Harley Quinn's Halloween costume ranked as the most popular costume in both the United States and the United Kingdom. The character has been interpreted as having a dependent personality disorder, as well as showing typically villainous antisocial behavior. Margot Robbie stated "there could be elements of manic depression, definitely PTSD thing. Loves to analyze people and someone like the Huntress who has massive childhood trauma that's just like, that's so exciting to her... Oh I want to get in their brain and pick it apart!"
Harley Quinn soundboard from the movie Suicide Squad with over 50 of her best quotes by Margot Robbie