Captain
David Garrick
The Investigator (voice)
Ezra Meade
Balkov
Jeff Tracy (voice)
Jeff Tracy (voice)
German Officer
Lloyd Greener
Mark Lemming
Commander Jenkins (uncredited)
Larry Stanford
Dr. Morrow
Willy Reichel
Dr. Rene Normand
Mr. Washington
Arthur Hayes
Uncle George
Midger
Tony Roscoe
Regan (uncredited)
Miller
Lady Anthea's Husband (uncredited)
