What heavyweight champion nicknamed "The Manassa Mauler" starred in Daredevil Jack?
Daredevil Jack: Daredevil Jack is a 1920 American silent action film serial directed by W. S. Van Dyke and starring heavyweight champion Jack Dempsey. Jack Dempsey: William Harrison "Jack" Dempsey (June 24, 1895 – May 31, 1983), nicknamed "Kid Blackie" and "The Manassa Mauler", was an American professional boxer who competed from 1914 to 1927, and reigned as the world heavyweight champion from 1919 to 1926.
Jack Dempsey