Reginald LeBorg Director Lon Chaney Jr. David Stuart Actor Jean Parker Heather Hayden Actor Paul Kelly Dr. Alan Bittaker Actor Thomas Gomez Captain Drury Actor Jonathan Hale Dr. Welles Actor Edward Fielding Stanley Hayden Actor George Meeker Nick Phillips Actor Pierre Watkin Attorney Actor Dwight V. Babcock Screenwriter Ben Pivar Producer Paul Ivano Cinematographer Milton Carruth Film Editing Paul Sawtell Original Music John B. Goodman Art Director Martin Obzina Art Director Russell A. Gausman Set Decoration Leigh Smith Set Decoration