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David Niven as Dr. Jason Love |
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Françoise Dorléac as Vikki |
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John Le Mesurier as Mc Gillivray |
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Cyril Cusack as Rosser |
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Eric Pohlmann as Farouk |
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Richard Marner as Josef |
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Paul Stassino as Simmias |
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George Pravda as 1st Agent |
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Noel Harrison as Jackson |
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Ronald Radd as Stanilaus |
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Alan Gifford as Security |
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Bill Nagy as Aeradio |
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George Mikell as Assassin |
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Nigel Davenport as Parkington |
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Gábor Baraker as 2nd Agent |
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Reginald Beckwith as Mr. Kahn |
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Geoffrey Bayldon as Lecturer |
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Derek Velez Partridge as Duty Officer |
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Robert Raglan as Sir Robert |
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Riyad Gholmieh as 1st Taxi Driver |
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Muhsen Samrani as 2nd Taxi Driver |
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Basil Dignam as Major Harding |
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Gordon Tanner as Inspector |
| Writing | Val Guest | Screenplay |
| Writing | Wolf Mankowitz | Screenplay |
| Directing | Val Guest | Director |
| Production | Val Guest | Producer |
| Sound | Mario Nascimbene | Original Music Composer |
| Editing | Bill Lenny | Editor |
| Writing | James Leasor | Novel |
| Production | Steven Pallos | Producer |
| Costume & Make-Up | Beatrice Dawson | Costume Design |
| Art | John Howell | Art Direction |
| Camera | Arthur Grant | Director of Photography |
| Art | Robert Brownjohn | Title Designer |
