Christopher James Chaplin (born 6 July 1962 in Corsier-sur-Vevey, Switzerland) is a Swiss-born English composer and actor. He is the youngest son of film comedian Charlie Chaplin and his fourth wife, Oona O'Neill.Born in Switzerland, Chaplin studied piano under Irene Denereaz in Vevey before going to London to become an actor and since 2005 has focused on a career as a composer.