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Stuart Whitman as Brian O'Brien |
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Stanley Baker as Mike Bain |
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Susannah York as Grace Munkton |
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Harry Andrews as Grimmelman |
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Theodore Bikel as Bondrechai |
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Nigel Davenport as Sturdevan |
| Production | Stanley Baker | Producer |
| Directing | Cy Endfield | Director |
| Production | Cy Endfield | Producer |
| Camera | Erwin Hillier | Director of Photography |
| Editing | David de Wilde | Assistant Editor |
| Crew | Wally Veevers | Special Effects |
| Crew | Cliff Richardson | Special Effects |
| Art | Seamus Flannery | Art Direction |
| Camera | Tony White | Camera Operator |
| Sound | Rusty Coppleman | Sound Editor |
| Editing | John Jympson | Editor |
| Directing | Muirne van Wyk | Script Supervisor |
| Costume & Make-Up | Gordon Bond | Hairstylist |
| Art | George Provis | Art Direction |
| Sound | John Dankworth | Music |
| Camera | Wally Fairweather | Focus Puller |
| Directing | Ariel Levy | Assistant Director |
| Editing | Ray Thorne | Assistant Editor |
| Sound | John Aldred | Sound Recordist |
| Writing | William Mulvihill | Author |
