 He also guest starred in "Sea Hunt" Season 4/Episode 4;Vital Error.In 1958 he played a crooked businessman/millionaire in an episode of "Wagon Train".Throughout his 35-year career in film, Hadley was cast as both a villain and a hero of the law, in such movies as "The Baron of Arizona" (1950), "The Half-Breed" (1952), "Highway Dragnet" (1954) and "Big House, U.S.A." (1955), and narrated a number of documentaries.