Samuel Lawrence Klausman Parks (December 13, 1914 – April 13, 1975) was an American stage and film actor. His career arced from bit player and supporting roles to top billing, before it was virtually ended when he admitted to having once been a member of a Communist Party cell, which led to his blacklisting by all Hollywood studios. His best known role was Al Jolson, whom he portrayed in two films: The Jolson Story (1946) and Jolson Sings Again (1949).