| Person | Type | Job | Role(s) |
|---|---|---|---|
 Akira Kurosawa | Crew | Writing | Original Film Writer |
 Allen K. Wood | Crew | Production | Production Supervisor |
Bert Henrikson | Crew | Costume & Make-Up | Costume Design |
Charles Lang | Crew | Camera | Director of Photography |
 Daniel C. Striepeke | Crew | Costume & Make-Up | Makeup Artist |
Don Stott | Crew | Lighting | Gaffer |
Edward Fitzgerald | Crew | Art | Art Direction |
 Elmer Bernstein | Crew | Sound | Original Music Composer |
Emile LaVigne | Crew | Costume & Make-Up | Makeup Artist |
 Emilio Fernández | Crew | Directing | Assistant Director |
Ferris Webster | Crew | Editing | Editor |
Francisco Day | Crew | Production | Production Manager |
 Henry Wills | Crew | Crew | Stunt Coordinator |
Jack Hayes | Crew | Sound | Orchestrator |
Jack Solomon | Crew | Sound | Sound Designer |
Jack Williams | Crew | Crew | Stunts |
Jaime Contreras | Crew | Directing | Assistant Director |
John Franco | Crew | Crew | Script |
 John Sturges | Crew | Directing | Director, Producer |
John Veitch | Crew | Production | Unit Production Manager |
Leo Shuken | Crew | Sound | Orchestrator |
Leroy Johnson | Crew | Crew | Stunts |
 Loren Janes | Crew | Crew | Stunt Double |
Lou Morheim | Crew | Production | Associate Producer |
Milt Rice | Crew | Crew | Special Effects |
Rafael Ruiz Esparza | Crew | Sound | Sound Designer |
Rafael Suárez | Crew | Art | Set Decoration |
Robert E. Relyea | Crew | Directing | Assistant Director |
Sam Gordon | Crew | Crew | Property Master |
 Walter Bernstein | Crew | Writing | Screenplay |
 Walter Mirisch | Crew | Production | Executive Producer |
Walter Newman | Crew | Writing | Screenplay |
William Roberts | Crew | Writing | Screenplay |
Del Harris | Crew | Sound | Sound Effects Editor |
Kyme Meade | Crew | Camera | Camera Operator |
Robert Bain | Crew | Sound | Music |
Thom Conroy | Crew | Crew | Dialect Coach |
Alex Montoya | Cast | Actor | (uncredited) |
 Bing Russell | Cast | Actor | Robert |
 Brad Dexter | Cast | Actor | Harry Luck |
 Charles Bronson | Cast | Actor | Bernardo O'Reilly |
 Eli Wallach | Cast | Actor | Calvera |
 Enrique Lucero | Cast | Actor | Villager |
 Horst Buchholz | Cast | Actor | Chico |
 James Coburn | Cast | Actor | Britt |
 Jim Davis | Cast | Actor | Gunman at Boot Hill |
 John A. Alonzo | Cast | Actor | Miguel |
 Jorge Martínez de Hoyos | Cast | Actor | Hilario |
 Joseph Ruskin | Cast | Actor | Flynn |
 José Chávez | Cast | Actor | Rafael |
 Larry Duran | Cast | Actor | Calvera Henchman (uncredited) |
 Mario Navarro | Cast | Boy with O'Reilly | |
 Natividad Vacío | Cast | Actor | Tomas |
 Rico Alaniz | Cast | Actor | Sotero |
 Robert J. Wilke | Cast | Actor | Wallace |
 Robert Vaughn | Cast | Actor | Lee |
 Roberto Contreras | Cast | Actor | Villager (uncredited) |
 Rosenda Monteros | Cast | Actress | Petra |
 Steve McQueen | Cast | Actor | Vin |
 Val Avery | Cast | Actor | Henry |
 Valentin de Vargas | Cast | Actor | Calvera Henchman (uncredited) |
 Victor French | Cast | Actor | Front Office Clerk |
 Vladimir Sokoloff | Cast | Actor | Old man |
 Whit Bissell | Cast | Actor | Chamlee |
 Yul Brynner | Cast | Actor | Chris Adams |
Pepe Hern | Cast | Actor | Tomas |
 Danny Bravo | Cast | Actor | (uncredited) |
| Person | Type | Job | Role(s) |
