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George Peppard as John Shay |
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Joan Collins as Sarah Booth |
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Judy Geeson as Polly Bendel |
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Oskar Homolka as Racovsky |
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Charles Gray as Vaughan Jones |
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Nigel Patrick as Colonel Scott |
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Keith Michell as Adam Booth |
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George Baker as Philip Crawford |
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Alexander Scourby as Prof. Parker |
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Peter Bull as Butterfield |
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Ernest Clark as Roper |
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Peter Dyneley as Balkov |
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Γκιζέλα Ντάλι as Anna |
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Stefan Gryff as Shay Cell Group Surrvior |
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Steve Plytas as Poilce Inspector |
| Directing | Sam Wanamaker | Director |
| Writing | Jack Pulman | Writer |
| Writing | Gordon McDonell | Story |
| Production | Charles H. Schneer | Producer |
| Sound | Ron Goodwin | Original Music Composer |
| Editing | Roy Watts | Editor |
| Production | Miriam Brickman | Casting |
| Costume & Make-Up | Yvonne Caffin | Costume Design |
| Costume & Make-Up | Trevor Crole-Rees | Makeup Artist |
| Production | Peter Price | Production Manager |
| Camera | Denys N. Coop | Director of Photography |
| Art | Edward Marshall | Art Direction |
| Production | John Comfort | Production Manager |
| Camera | Alan Hall | Camera Operator |
