| John Gielgud | Edgar Brodie / Richard Ashenden |
| Peter Lorre | The General |
| Madeleine Carroll | Elsa Carrington |
| Robert Young | Robert Marvin |
| Percy Marmont | Caypor |
| Florence Kahn | Mrs. Caypor |
| Charles Carson | 'R' |
| Lilli Palmer | Lilli |
| Sebastian Cabot | Bit Role |
| Tom Helmore | Colonel Anderson |
| Director | Alfred Hitchcock |
| Producer | Michael Balcon; Ivor Montagu |
| Writer | W. Somerset Maugham; Campbell Dixon |
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