Michael Chaplin born 7 March 1946 is an EnglishAmerican actor born in Santa Monica California He is the second child and eldest son from Charlie Chaplins fourth and final marriage to Oona ONeill He acted in his fathers films Limelight 1952 and A King in New York 1957 In the latter he played 10yearold Rupert Macabee a fasttalking advocate of civil rights and a child of communists who after an initially adversarial period of political dialogue is befriended by the King and gains his assistance He was also in Promise Her Anything with Warren Beatty and Leslie Caron 1965 and The Sandwich Man 1966 He was married firstly to the writer Patrice Chaplin and secondly to Patricia Betaudier who is a painter He is the father of actresses Carmen Chaplin and Dolores Chaplin In the mid1960s Michael wrote his autobiography I Couldnt Smoke The Grass On My Fathers Lawn He was also halfbrother to Sydney Chaplin Charles Chaplin Jr and Norman Chaplin