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Cliff Robertson as Wing Commander Roy Grant |
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George Chakiris as Lieutenant Erik Bergman |
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Maria Perschy as Hilde Bergman |
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Harry Andrews as Air Vice-Marshal Davis |
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Donald Houston as Group Captain Don Barrett |
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Michael Goodliffe as Squadron Leader Frank Adams |
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John Meillon as Flight Lieutenant Gillibrand |
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John Bonney as Flight Lieutenant Scott |
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Angus Lennie as Flying Officer Hoppy Hopkinson |
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Scot Finch as Flying Officer Bissell |
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John Church as Flying Officer Evans |
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Barbara Archer as Rosie, barmaid at the Black Swan Inn |
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Sean Kelly as Lieutenant Nigel |
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Julian Sherrier as Flight Lieutenant Singh |
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Geoffrey Frederick as Flight Lieutenant Frank |
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Johnny Briggs as Lieutenant Jones |
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Suzan Farmer as WAAF Sergeant Mary Blake / Bissell |
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Anne Ridler as SS Interrogator |
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Peter Kriss as Lieutenant Maner (uncredited) |
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Cavan Malone as Ericson, Norwegian Resistance (uncredited) |
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Richard Shaw as Johanson, Norwegian Resistance (uncredited) |
| Writing | Howard Koch | Screenplay |
| Directing | Walter Grauman | Director |
| Writing | James Clavell | Screenplay |
| Sound | Ron Goodwin | Music |
| Art | Michael Stringer | Production Design |
| Production | Cecil F. Ford | Producer |
| Camera | Edward Scaife | Director of Photography |
| Editing | Bert Bates | Editor |
| Camera | Jack Atcheler | Camera Operator |
| Writing | Frederick E. Smith | Novel |
| Art | Mickey Lennon | Dressing Prop |
| Directing | Ted Sturgis | Assistant Director |
| Camera | Arthur Evans | Still Photographer |
| Sound | Teddy Mason | Sound Editor |
| Crew | Tom Howard | Special Effects |
| Camera | John Wilcox | Additional Photography |
| Sound | J.B. Smith | Sound Recordist |
| Sound | John Bramall | Sound Recordist |
| Directing | Connie Willis | Continuity |
