Onder andere met: Jack Nance (Henry Spencer), Charlotte Stewart (Mary X), Allen Joseph (Mr. X), Jeanne Bates (Mrs. X), Judith Roberts (Beautiful Girl Across the Hall), Laurel Near (Lady in the Radiator), V. Phipps-Wilson (Landlady), Jack Fisk (Man in the Planet), Jean Lange (Grandmother), Thomas Coulson (The Boy), John Monez (Bum), Darwin Joston (Paul), T. Max Graham (The Boss), Hal Landon Jr. (Pencil Machine Operator)