The son of George and Edna May Byrd, Ralph Byrd was born in Dayton, Ohio. Before he began acting in films, he sang and danced in theatrical productions.[2]
He served in the United States Army during World War II, having been inducted into the service in San Pedro, California, in 1944.[3]
He married actress and model Virginia Carroll in 1936.[4] The couple remained together until Byrd's death in 1952.[4]
Once established in Republic Pictures' Dick Tracy serials (beginning in 1937), he was usually cast in action features (as a truck driver, lumberjack, cowboy, etc.).
Republic cast Byrd as Chester Gould's comic-strip detective Dick Tracy in the 1937 serial of the same title. The film was so successful that it spawned three sequels (unheard of in serials): Dick Tracy Returns, Dick Tracy's G-Men (featuring a young Jennifer Jones, under her real name of Phylis Isley), and Dick Tracy vs. Crime Inc. (reissued in 1952 as Dick Tracy vs. the Phantom Empire).