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Richard Attenborough as Peter Watson |
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Bernard Lee as Inspector Thompson |
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Donald Houston as Dr. Sanderson |
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Dorothy Alison as Mrs. Barnes |
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Patricia Jessel as Mrs. Lawrence |
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Virginia Maskell as Helen Grey |
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Kenneth Griffith as Pollen |
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Alfred Burke as Mr. Barnes |
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Charles Houston as Nicholas |
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Maureen Connell as Eunice Blair |
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Amy Dalby as Miss Acres |
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Walter Hudd as Superintendent |
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Patrick Jordan as Injured Sergeant |
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Graham Stewart as Sergeant Morris |
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Victor Brooks as Sergeant Collins |
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Edward Judd as P.C. Stevens |
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Arthur Gross as P.C. Clark |
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Dan Cressey as P.C. Maclean |
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John Charlesworth as Army Lieutenant |
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Raymond Ray as Reporter |
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Edward Evans as Fire Brigade Officer |
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David Griffith as Johnny |
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Polly Clarke as Dulcie |
| Writing | Alun Falconer | Writer |
| Crew | Don Chaffey | Additional Dialogue |
| Directing | Don Chaffey | Director |
| Editing | John Trumper | Editor |
| Camera | Gerry Massy-Collier | Camera Operator |
| Production | Ralph Bond | Executive In Charge Of Production |
| Production | 'Freddie' Pearson | Production Manager |
| Costume & Make-Up | Betty Sherriff | Hairstylist |
| Costume & Make-Up | Philip Leakey | Makeup Artist |
| Sound | Bill Salter | Sound Recordist |
| Costume & Make-Up | Betty Adamson | Wardrobe Master |
| Directing | Jane Buck | Continuity |
| Art | William Kellner | Art Direction |
| Directing | Ronald Spencer | Assistant Director |
| Production | Robert Dunbar | Producer |
| Camera | Gerald Gibbs | Director of Photography |
| Crew | Robert Dunbar | Additional Dialogue |
