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Peter Sellers as Rouquet |
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Charles Aznavour as Visconti |
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Jeremy Kemp as Grabinski |
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Peter Vaughan as Aufret |
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Per Oscarsson as Lund |
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Nicholas Jones as Kromer |
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Leon Lissek as Kozhek |
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Alfred Lynch as Larshen |
| Editing | Peter Gold | Editor |
| Writing | Jean-Paul Clébert | Novel |
| Writing | John Gould | Screenplay |
| Directing | Clive Rees | Director |
| Sound | Stanley Myers | Music |
| Production | Edgar Bronfman Jr. | Producer |
| Writing | Clive Rees | Writer |
| Writing | John Gould | Writer |
| Production | Antony Rufus-Isaacs | Producer |
| Art | Tony Teiger | Property Master |
| Costume & Make-Up | Jo Osmond | Wardrobe Supervisor |
| Production | Kent Walwin | Executive Producer |
| Production | Peter James | Executive Producer |
| Art | George Lack | Art Direction |
| Costume & Make-Up | Harry Frampton | Makeup Artist |
| Camera | John Stanier | Camera Operator |
| Production | Matthew Raymond | Production Manager |
| Sound | John Jordan | Sound Recordist |
| Art | Leo Austin | Art Direction |
| Costume & Make-Up | Joyce James | Hairdresser |
| Lighting | Peter Bloor | Electrician |
| Crew | Ron Ballanger | Special Effects |
| Camera | Keith Goddard | Director of Photography |
