Kacey Mottet Klein: Kacey Mottet Klein. Actor: Sister. Kacey Mottet Klein was born on 20 October 1998 in Lausanne, Switzerland. He is an actor, known for Sister (2012), Home (2008) and Being 17 (2016).
Known For: Sister (Simon), Home (Julien), Being 17 (Damien Delille), Gainsbourg: A Heroic Life (Lucien Ginsburg)