| George Hepplewhite | George Formby | |
| Mary Wilson | 菲利丝·卡沃特
 | |
| Mendez | Garry Marsh | |
| Slim Selwyn | Romney Brent | |
| Oscar | 伯纳德·李
 | |
| Iris | 卡罗尔·布朗
 | |
| Oscar's Wife | Helena Pickard | |
| Schwartz spy chieftain | Percy Walsh | |
| Greta hotel receptionist | Diana Beaumont | |
| U-Boat commander | Torin Thatcher | |
| Frederick Strickland | Donald Calthrop | |
| Alf Arbuckle Dinky Do | Hal Gordon | |
| Solicitous steward | Johnnie Schofield | |
| German radio operator | Albert Lieven | |
| Untipped steward | Bill Shine | |
| Musician | Ronald Shiner | |
| Officer (uncredited) | Alec Clunes | |
| Col. Harcourt (uncredited) | Ian Fleming
 | |
| Conway (uncredited) | Jack Hobbs | |
| Passenger On SS Macaulay (uncredited) | James Knight | |
| Simion (uncredited) | Charles Paton | |
| Hotel Manager (uncredited) | Lloyd Pearson | |
| Radio Operator On SS Macaulay (uncredited) | Ben Williams | |
