| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alan Arnold | Crew | Crew | Unit Publicist |
 Antonio Margheriti | Crew | Directing | Director |
Carlo Tafani | Crew | Camera | Camera Operator |
Carmen Martín | Crew | Costume & Make-Up | Makeup Artist |
Eric Bercovici | Crew | Writing | Screenplay |
 Hal Needham | Crew | Crew | Stunt Coordinator, Second Unit Director |
Jerrold L. Ludwig | Crew | Writing | Screenplay |
 Jerry Goldsmith | Crew | Sound | Original Music Composer |
Jim Willis | Crew | Sound | Sound Mixer |
John Caper Jr. | Crew | Sound | Music Editor |
 José López Rodero | Crew | Directing | Assistant Director |
José María Ochoa | Crew | Production | Unit Manager |
Juan Maján | Crew | Crew | Stunt Coordinator |
Julio Molina | Crew | Art | Art Direction |
Leon Chooluck | Crew | Production | Co-Producer |
Raúl Pérez Cubero | Crew | Camera | Second Unit Director of Photography |
Riccardo Pallottini | Crew | Camera | Director of Photography |
Stanford C. Allen | Crew | Editing | Editor |
Theodore Soderberg | Crew | Sound | Sound Re-Recording Mixer |
Antonio Molina | Crew | Crew | Special Effects |
Phil Stern | Crew | Camera | Still Photographer |
Harry Bernsen | Crew | Production | Producer |
Maria Luisa Alcaraz | Crew | Production | Associate Producer |
Agustín Jiménez | Crew | Costume & Make-Up | Costume Design, Wardrobe Supervisor |
Lucie Lichtig | Crew | Directing | Script Supervisor |
Dennis Mosher | Crew | Editing | Assistant Editor |
Luciano D'Achille | Crew | Crew | Special Effects |
Ángel Sevillano | Crew | Art | Property Master |
 Barry Sullivan | Cast | Actor | Kane |
 Buddy Joe Hooker | Cast | Actor | Angel |
 Catherine Spaak | Cast | Actress | Catherine |
 Charles McGregor | Cast | Actor | Cloyd |
 Dana Andrews | Cast | Actor | Morgan |
 Dean Selmier | Cast | Actor | Man in Saloon (uncredited) |
 Fred Williamson | Cast | Actor | Tyree |
 George Rigaud | Cast | Actor | Horse Dealer (uncredited) |
Hal Needham | Cast | Actor | Garmes (uncredited) |
 Harry Carey, Jr. | Cast | Actor | Dumper |
 Jim Brown | Cast | Actor | Pike |
 Jim Kelly | Cast | Actor | Kashtok |
 Lee Van Cleef | Cast | Actor | Kiefer |
Paul Costello | Cast | Card Player (uncredited) | |
 Ricardo Palacios | Cast | Actor | Calvera |
 Robert Donner | Cast | Actor | Skave |
 Ronald Howard | Cast | Actor | Halsey |
Leonard Smith | Cast | Cangey | |
| Person | Type | Job | Role(s) |
