Otto Becker / Baron Hugo von Detner
Kaaren De Relle
Fritz
Miss Harper
Professor Sterling (as Ivan Simpson)
Ludwig
Kurt Richten
Joe Aiello
Arnold Milbar
Brenner
Grover Blaine McHenry
Sailor (uncredited)
Cab Driver (uncredited)
Landlady (uncredited)
Spy (uncredited)
Fat Woman (uncredited)
Chief Petty Officer (uncredited)
Woman (uncredited)
Detective (uncredited)
Officer (uncredited)
Waiter (uncredited)
Clerk (uncredited)
Doorman (uncredited)
Commentator (voice) (uncredited)
Reporter (uncredited)
Youth (uncredited)
Diplomat (uncredited)
Restaurant Patron (uncredited)
Rosie (uncredited)
1st Captain (uncredited)
Onlooker at Departure (uncredited)
Thug (uncredited)
Operator (uncredited)
Messenger (uncredited)
Bellboy (uncredited)
Harry (voice) (uncredited)
Mohr (uncredited)
2nd Captain (uncredited)
Elderly Man (uncredited)
Mrs. Mohr (uncredited)
Headwaiter (uncredited)
Radio Operator (uncredited)
Officer Graves (uncredited)
Bauer (uncredited)
Keeler (uncredited)
Barney (uncredited)
Submarine Radioman (uncredited)
