The son of vaudeville monologist Julius Tannen, Charles Tannen launched his own film career in 1936. For the rest of his movie "life," Tannen was most closely associated with 20th Century Fox, playing minor roles in films both large (John Ford's The Grapes of Wrath) and not so large (Laurel and Hardy's Great Guns). Rarely receiving screen credit, Tannen continued playing utility roles well into the 1960s, showing up in such Fox productions as The Fly (1958) and Voyage to the Bottom of the Sea (1961). Charles Tannen's older brother, William, was also an active film performer during this period.