Directed by
| Ken Annakin | ||
Writing Credits (in alphabetical order)
| Federico De Urrutia | ... | (Italian version) |
| Hubert Frank | ... | (German version) |
| Jack London | ... | (novel) |
| Tíbor Reves | ... | (uncredited) |
| Harry Alan Towers | ... | (as Peter Welbeck) |
| Win Wells | ... | (as Wyn Wells) |
| Peter Yeldham | ... | (written by) |
| Egerton Ryerson Young | ... | (source material) |
Cast (in credits order) verified as complete
| Charlton Heston | ... | John Thornton | |
| Michèle Mercier | ... | Calliope Laurent (as Michelle Mercier) | |
| Raimund Harmstorf | ... | Pete (as Raymond Harmstorf) | |
| George Eastman | ... | Black Burton | |
| Maria Rohm | ... | Mercedes | |
| Juan Luis Galiardo | ... | Seze | |
| Sancho Gracia | ... | Taglish Charlie | |
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Friedhelm Lehmann | ... | Charles |
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Horst Heuck | ... | Hal |
| Rik Battaglia | ... | Dutch Harry | |
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Alf Malland | ... | Constantine |
| Alfredo Mayo | ... | Judge Miller | |
| Sverre Wilberg | ... | Colonel | |
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Olov Pedersen | ... | Red Sweater |
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Per Amvik | ... | François |
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Torbjørn Halvorsen | ... | Perrault |
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Hans Stormoen | ... | Master of Ceremonies |
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Kåre Siem | ... | Piano Player |
| Dan Fosse | ... | Old Miner (as Dan Rosse) | |
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Roy Bjørnstad | ... | Storeman |
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Ola B. Johannessen | ... | Con Man |
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Per Tofte | ... | Runner |
| Antonio Mayans | ... | Jack | |
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Jennifer Roberts | ... | Mollie |
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Jody Hanson | ... | Alice |
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Buck | ... | Buck |
| Rest of cast listed alphabetically: | |||
| Luis Barboo | ... | (uncredited) | |
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Charly Bravo | ... | (uncredited) |
Produced by
| Artur Brauner | ... | producer |
| George Davis | ... | associate producer |
| Peter Manley | ... | associate producer |
| Ennio Nobili | ... | co-producer (uncredited) |
| Harry Alan Towers | ... | producer |
Music by
| Carlo Rustichelli | ||
Cinematography by
| John Cabrera | ||
Editing by
| Thelma Connell | ||
Art Direction by
| Knut Solberg | ||
Costume Design by
| Brit Hartmann | ||
| Grethe Wang | ||
Makeup Department
| Cristóbal Criado | ... | makeup artist |
Production Management
| Miguel Ángel Bermejo | ... | assistant production manager |
| Hans Lindgren | ... | production manager |
| Svein Toreg | ... | production manager |
| Odd Ween | ... | unit production manager |
Second Unit Director or Assistant Director
| Ian Goddard | ... | assistant director |
| Bente Kaas | ... | assistant director |
| Dudley Lovell | ... | second unit director |
| Ola Solum | ... | assistant director |
Art Department
| Rafael Ablanque | ... | assistant art director |
| Petter J. Borgli | ... | props |
Sound Department
| Doug E. Turner | ... | sound mixer (as Douglas Turner) |
Special Effects by
| Peter Dawson | ... | special effects technician (uncredited) |
| Kit West | ... | special effects supervisor (uncredited) |
Camera and Electrical Department
| Dudley Lovell | ... | photography: second unit |
| Hans Nord | ... | camera operator |
| Egil S. Woxholt | ... | additional photographer (as Egil Woxholt) |
Script and Continuity Department
| Unni Sterner | ... | script supervisor |
Additional Crew
| Miguel Ángel Bermejo | ... | production assistant |
| Thomas Danneberg | ... | voice dubbing: Horst Heuck (german version) (uncredited) |
| Martin Hirthe | ... | voice dubbing: Rik Battaglia (german version) (uncredited) |
