Who was the actress that played in "Descendants"-(2015 American fantasy TV film) as well as played dual roles as both title characters on Disney Channel's "Liv & Maddie" ?
Descendants (2015 film):  The film stars Dove Cameron, Sofia Carson, Booboo Stewart, and Cameron Boyce as the teenage daughters and sons of Maleficent, the Evil Queen, Jafar, and Cruella De Vil, respectively. Dove Cameron: Dove Cameron (born Chloe Celeste Hosterman; January 15, 1996) is an American actress and singer, best known for playing a dual role as both title characters in the Disney Channel teen sitcom "Liv and Maddie" and starring in "Descendants" as Mal, daughter of Maleficent.
Dove Cameron