Harley Quinn is an American adult animated superhero television series based on the DC Comics character of the same name created by Paul Dini and Bruce Timm. The series is written and executive-produced by Justin Halpern, Patrick Schumacker and Dean Lorey, and follows the misadventures of Harley Quinn and her best friend (and later girlfriend) Poison Ivy after leaving her boyfriend, the Joker. The show premiered on DC Universe to critical success on November 29, 2019, with critics praising its animation, humor, dark tone, voice acting, and portrayal of the titular protagonist. The show's second season premiered on April 3, 2020. On September 18, 2020, the series was officially renewed for a third season, along with the announcement that the show would move to HBO Max, following the restructuring of DC Universe.