Directed by
| Roy Ward Baker | ... | (as Roy Baker) |
Writing Credits
| William Fairchild | ... | (screenplay) (as W.E.C. Fairchild) |
| Kenneth Woollard | ... | (based on the stage play of the same name by) |
Cast (in credits order) complete, awaiting verification
| John Mills | ... | Lieut. Commander Armstrong | |
| Nigel Patrick | ... | Lieut. Manson | |
| Peter Hammond | ... | Sub Lieut. Oakley | |
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Andrew Crawford | ... | Sub Lieut. (E) J. McFee |
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Michael Brennan | ... | C.P.O. Barlow |
| George Cole | ... | E.R.A. Marks | |
| Victor Maddern | ... | Leading Telegraphist Hillbrook | |
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Roddy McMillan | ... | Leading Seaman Andrews |
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Frank Coburn | ... | Leading Seaman Brough |
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Jack Stewart | ... | Leading Seaman Kelly |
| James Hayter | ... | Able Seaman Higgins | |
| Wylie Watson | ... | Able Seaman Nobby Clarke | |
| Richard Attenborough | ... | Stoker Snipe | |
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George Thorpe | ... | Capt. Fenton |
| Bernard Lee | ... | Commander Gates | |
| Kenneth More | ... | Lieut. Commander James | |
| Alastair Hunter | ... | Capt. Jenner | |
| Helen Cherry | ... | Helen Armstong | |
| Lana Morris | ... | Rose Snipe | |
| Zena Marshall | ... | The Wren | |
| Rest of cast listed alphabetically: | |||
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Arthur Sandifer | ... | (uncredited) |
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Emile Stemmler | ... | Waiter (uncredited) |
Produced by
| Jay Lewis | ... | producer |
Cinematography by
| Desmond Dickinson | ... | director of photography |
Editing by
| Alan Osbiston | ||
Casting By
| Tina L. Scott | ||
Art Direction by
| Alex Vetchinsky | ||
Makeup Department
| Tony Sforzini | ... | makeup supervisor |
Production Management
| Roy Goddard | ... | production manager |
| Herbert Smith | ... | executive in charge of production (uncredited) |
Second Unit Director or Assistant Director
| Robert Asher | ... | assistant director |
| Basil Keys | ... | assistant director |
| Frank Ernst | ... | third assistant director (uncredited) |
| Alec Gibb | ... | second assistant director (uncredited) |
Art Department
| John Brown | ... | production buyer (uncredited) |
| H. Don Lee | ... | chief draughtsman (uncredited) |
| Harry Phipps | ... | construction manager (uncredited) |
| Arthur Taksen | ... | set dresser (uncredited) |
Sound Department
| George Croll | ... | sound recordist |
| John W. Mitchell | ... | sound recordist |
| Jack Slade | ... | sound editor |
| Michael Colomb | ... | assistant boom operator (uncredited) |
| Peter Davies | ... | assistant dubbing mixer (uncredited) |
| Basil Fenton-Smith | ... | boom operator (uncredited) |
Camera and Electrical Department
| H.E. Fowle | ... | additional photography |
| Harold Haysom | ... | camera operator |
| Lt. Hodges | ... | underwater photography (as Lt. Hodges R.N.V.R.) |
| Maurice Gillett | ... | electrician (uncredited) |
| Reginald H. Morris | ... | focus puller (uncredited) |
| Alex Thomson | ... | clapper loader (uncredited) |
| Bill Walpole | ... | chief electrician (uncredited) |
Editorial Department
| Jack Slade | ... | assembly cutter (uncredited) |
Music Department
| William Alwyn | ... | composer: stock music (uncredited) |
| Gordon Jacob | ... | composer: stock music (uncredited) |
Script and Continuity Department
| Olga Brook | ... | continuity |
Additional Crew
| J. Fenton | ... | technical advisor (as Lt. Cdr. J. Fenton D.S.C.) |
| Leslie Parkyn | ... | administrator |
| Ray Cunnington | ... | assistant publicity director (uncredited) |
| Ken Green | ... | publicity manager (uncredited) |
| Kathleen Hosgood | ... | production secretary (uncredited) |
| Donald Toms | ... | production runner (uncredited) |
