Ray McCarey Director Elsa Lanchester Ella Muggins Actor Gordon Oliver Capt. Franz von Weber Actor Lenore Aubert Grete Neumann Actor Fritz Feld Chief Janitor Actor Joseph Vitale Lt. Bosch Actor Gavin Muir Lord Haw-Haw Actor Lloyd Corrigan Prof. Frederick Walthers Actor Lydia Bilbrook Millie Actor Val Burton Screenwriter Muriel Roy Bolton Screenwriter Herman Schlom Producer Jack MacKenzie Cinematographer Robert Swink Film Editing Roy Webb Original Music Harley Miller Set Decoration Darrell Silvera Set Decoration Albert D'Agostino Art Director Jack Okey Art Director