Allan Dwan Director, Producer Nelson Eddy Capt. Jim Laurence Actor Ilona Massey Natalia Alanova Actor Joseph Schildkraut Count Igor Savin Actor Elsa Lanchester Princess 'Tanya' Tatiana Actor Hugo Haas Prince Nickolai Balinin Actor Lenore Ulric Baroness Kruposny Actor Peter Whitney Volkoff Overseer Actor Erno Verebes Kyril Balinin's Aide Actor Elizabeth Meehan Screenwriter Richard Sale Screenwriter Reggie Lanning Cinematographer Harry Keller Film Editing Hilyard M. Brown Art Director Fred A. Ritter Art Director John McCarthy Jr. Set Decoration James Redd Set Decoration Adele Costume Design