The son of veteran #92;vaudeville headliner Julius Tannen and the brother of actor Charles Tannen, William Tannen entered films as a Columbia contractee in 1934. Along with several other young stage-trained performers, Tannen was "discovered" by MGM in 1938's Dramatic School. During his subsequent years at MGM, he was briefly associated with three top #92;comedy teams: He played Virginia Grey's brother in the Marx Brothers' The Big Store (1941), a Nazi flunkey in Laurel and Hardy's Air Raid Wardens (1943), and a "hard-boiled" assistant director in Abbott and Costello in Hollywood (1945). On TV, William Tannen was seen in the recurring role of Deputy Hal on the weekly #92;Western Wyatt Earp (1955-1961). ~ Hal Erickson, All Movie Guide