Philip Ford Director Robert Livingston Dr. Terrance "Terry" Evans Actor Ian Keith Ormand Murks Actor Lorna Gray Nurse Susan Drake Actor Charles Trowbridge Dr. Rufus Maynard Actor Earle Hodgins Fred Mays Actor LeRoy Mason Detective Hendricks Actor William Haade Police Officer 'Tiny' Actor Wilton Graff Dr. Lucifer Garland Actor Charles Cane Chief Inspector Ryan Actor Dorrell McGowan Screenwriter Stuart E. McGowan Screenwriter Reggie Lanning Cinematographer William P. Thompson Film Editing Hilyard M. Brown Art Director John McCarthy Jr. Set Decoration Allan Alperin Set Decoration