George Hepplewhite
Mary Wilson
Mendez
Slim Selwyn
Oscar
Iris
Oscar's Wife
Schwartz, Spy Chieftain
Greta, Hotel Receptionist
U-Boat Commander
Frederick Strickland
Alf Arbuckle, Dinky Do
Solicitous Steward
Baker (uncredited)
Officer (uncredited)
Dockside Policeman (uncredited)
Col. Harcourt (uncredited)
Conway (uncredited)
Passenger On SS Macaulay (uncredited)
German Radio Operator (uncredited)
Simion (uncredited)
Hotel Manager (uncredited)
Untipped Steward (uncredited)
Musician (uncredited)
Radio Operator On SS Macaulay (uncredited)
Parker, Dinky Do (uncredited)