George Brent
Prince Kurt von Rotenberg
Martha Scott
Marta Keller
Paul Lukas
Baron von Helsing
Peter Cushing
Sub-Lieutenant Blackler
Sig Arno
Louis
Georgia Backus
German Secretary
Edgar Barrier
Capt. Wilhelm Ehrhardt
Don Beddoe
Second Sailor
Nicholas Bela
First Sailor (uncredited)
Leon Belasco
Pierre
Roman Bohnen
Baron Shafter
Nina Borget
Stewardess
Harry C. Bradley
Prof. Keller
