Directed by
| Lewis Milestone | ||
Writing Credits
| Robert Westerby | ... | (screenplay) |
Cast (in credits order) verified as complete
 |
Kay Callard | ... | Nightclub Singer |
| William Russell | ... | Lieut. Poole (as Russell Enoch) | |
| Dirk Bogarde | ... | Lieut. Graham | |
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Harold Siddons | ... | Lieut. Stevens R.N. |
| Eric Pohlmann | ... | Captain Nikolides Papadapoulos | |
| Akim Tamiroff | ... | Captain George One | |
| Gérard Oury | ... | Captain George Two (as Gerard Oury) | |
| Lisa Gastoni | ... | George Two's Girlfriend | |
| Sam Kydd | ... | Marine Boyd | |
| Peter Burton | ... | Marine Barrett | |
| David Peel | ... | Sergeant Evans | |
| Denholm Elliott | ... | Sergeant Corcoran | |
| Michael Mellinger | ... | Toplis | |
| Alec Mango | ... | Patroklis | |
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Anthea Leigh | ... | Marika |
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Eileen Way | ... | Greek Woman |
| Rest of cast listed alphabetically: | |||
|
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Ernest Bale | ... | Submarine Executive Officer (uncredited) |
| Christopher Rhodes | ... | German Officer (uncredited) | |
| Robert Rietty | ... | Italian Officer (uncredited) | |
|
|
Peter Taylor | ... | German Officer (uncredited) |
Produced by
| Aubrey Baring | ... | producer |
| Maxwell Setton | ... | producer |
Music by
| Robert Gill | ||
Cinematography by
| Wilkie Cooper | ... | director of photography |
Editing by
| Vladimir Sagovsky | ... | (as V. Sagovsky) |
Art Direction by
| Donald M. Ashton | ... | (as Don Ashton) |
Makeup Department
| Neville Smallwood | ... | makeup artist |
Production Management
| George Maynard | ... | production manager |
Second Unit Director or Assistant Director
| Gus Agosti | ... | first assistant director |
| Martin C. Schute | ... | second assistant director (as Martin Schute) |
Art Department
| Ralph Sallon | ... | caricature sketches by |
| Walter Bjorne | ... | poster artist : Sweden (uncredited) |
Sound Department
| Gerry Anderson | ... | dubbing editor (as G. Anderson) |
| John Cox | ... | sound supervisor |
| Red Law | ... | sound recordist |
| George Stephenson | ... | sound recordist |
Camera and Electrical Department
| Moray Grant | ... | camera operator (as R.D. Moray Grant) |
| Dennis Bartlett | ... | focus puller (uncredited) |
Editorial Department
| Joan Bridge | ... | color consultant: Technicolor |
Music Department
| Robert Gill | ... | music director / conductor (uncredited) |
Script and Continuity Department
| Connie Willis | ... | continuity |
