Directed by
| Harold French | ||
| Paul L. Stein | ||
Writing Credits (in alphabetical order)
| Henry Cass | ... | (dialogue supervisor) |
| Marjorie Deans | ... | (screenplay) |
| Katrin Holland | ... | (novel) (as Kathrin Holland) |
| Roland Pertwee | ... | (screenplay) |
Cast (in credits order)
| Carla Lehmann | ... | Jacqueline (Jack) Marlow | |
| Hugh Williams | ... | Michael Thomas | |
| Joyce Howard | ... | June Marlow | |
| John Warwick | ... | Donald Clark | |
| Roland Culver | ... | Leslie Waddington | |
| Mary Jerrold | ... | Aunt Helen | |
| Guy Middleton | ... | Captain Tony Brook | |
| Martita Hunt | ... | Colonel's Wife | |
| Max Adrian | ... | Lionel | |
| Katie Johnson | ... | Housekeeper (Ethel) | |
| Eileen Peel | ... | Woman Reporter | |
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Gerhard Kempinski | ... | Receptionist in Riviera Hotel (as G. Kempinski) |
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Percy Walsh | ... | Frenchman in Train |
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Anthony Holles | ... | Wagon-lit Attendant (as Anthony Hollis) |
| Ian Fleming | ... | Butler at Waddington's | |
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Joan Kemp-Welch | ... | Maid |
| Beatrice Varley | ... | Innkeeper in Coffee Room | |
| Roland Pertwee | ... | Doctor in Hospital | |
| Rest of cast listed alphabetically: | |||
| Geoffrey Sumner | ... | Bertie | |
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Joan Hopkins | ... | Nurse (uncredited) |
| Allan Jeayes | ... | (uncredited) | |
| Kay Lewis | ... | Guest at Hotel Superbe (uncredited) | |
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Robert Brooks Turner | ... | Foster (uncredited) |
Produced by
| Marcel Hellman | ... | producer |
Cinematography by
| Bernard Knowles | ... | director of photography |
| Cyril J. Knowles | ||
Editing by
| Edward B. Jarvis | ... | (as E.B. Jarvis) |
Art Direction by
| Carmen Dillon | ||
Production Management
| Tom White | ... | production manager |
Second Unit Director or Assistant Director
| William N. Boyle | ... | assistant director (as W. N. Boyle) |
Art Department
| Paul Sheriff | ... | supervising art director |
Sound Department
| John Dennis | ... | sound recordist |
| A.W. Watkins | ... | sound supervisor |
Camera and Electrical Department
| Jack Dooley | ... | still photographer |
| Cyril J. Knowles | ... | camera operator (as Cyril Knowles) |
Music Department
| Mischa Spoliansky | ... | music |