- George Formby
- George Hepplewhite
- Phyllis Calvert
- Mary Wilson
- Garry Marsh
- Mark Mendez
- Romney Brent
- Slim Selwyn
- Bernard Lee
- Oscar
- Coral Browne
- Iris
- Helena Pickard
- Oscar's Wife
- Percy Walsh
- Schwartz - Spy Chieftain
- Diana Beaumont
- Greta - Hotel Receptionist
- Torin Thatcher
- U-Boat Commander
- Donald Calthrop
- Frederick Strickland
- Hal Gordon
- Alf Arbuckle - Dinky Doo
- Johnnie Schofield
- Solicitous Steward
- Daniel Brown
- Baker
- Alec Clunes
- Officer
- Walter Fitzgerald
- Dockside Policeman
- Ian Fleming
- Colonel Harcourt
- Jack Hobbs
- Conway
- James Knight
- Passenger on SS Macaulay
- Albert Lieven
- German Radio Operator
- Charles Paton
- Simion
- Lloyd Pearson
- Hotel Manager
- Bill Shine
- Untipped Steward
- Ronald Shiner
- Musician
- Ben Williams
- Radio Operator on SS Macaulay
- Ian Wilson
- Parker - Dinky Doo
