| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alejandro Ulloa | Crew | Camera | Director of Photography |
 Dario Sabatello | Crew | Production | Producer |
 Duccio Tessari | Crew | Writing | Screenplay |
 Ennio Morricone | Crew | Sound | Original Music Composer |
Enzo Dell'Aquila | Crew | Writing | Screenplay |
 Fernando Di Leo | Crew | Writing | Screenplay |
Franco Giraldi | Crew | Directing | Director |
Jaime Pérez Cubero | Crew | Art | Art Direction |
Mario Morra | Crew | Editing | Editor |
 Nino Baragli | Crew | Editing | Editor |
David Moreno Mingote | Crew | Writing | Story, Screenplay |
 Agata Flori | Cast | Actress | Rosita Carson |
 Alberto Dell'Acqua | Cast | Actor | Dick MacGregor |
Ana María Noé | Cast | Actress | Mamie MacGregor |
 Antonio Iranzo | Cast | Actor | Bandido (uncredited) |
 Antonio Molino Rojo | Cast | Actor | Sheriff John F. Mason |
Antonio Orengo | Cast | Actor | Horse Seller (uncredited) |
Antonio Padilla | Cast | Bandido (uncredited) | |
 Cris Huerta | Cast | Actor | Crawford |
 Fernando Sancho | Cast | Actor | Miguel |
Francesco Tensi | Cast | Actor | Harold MacGregor |
 George Rigaud | Cast | Actor | Alastair MacGregor |
 Guillermo Méndez | Cast | Actor | Bandido (uncredited) |
Joaquín Parra | Cast | Santillana Henchman (uncredited) | |
José Luis Lluch | Cast | Bandido (uncredited) | |
 José Riesgo | Cast | Actor | Carcelero (uncredited) |
 Julio Pérez Tabernero | Cast | Actor | Mark MacGregor |
 Leo Anchóriz | Cast | Actor | Santillana |
 Leonardo Scavino | Cast | Actor | Bank Director (uncredited) |
 Manuel Bermúdez 'Boliche' | Cast | Actor | Santillana Henchman (uncredited) |
 Manuel Zarzo | Cast | Actor | David MacGregor |
 Margherita Horowitz | Cast | Actress | Annie MacGregor |
 Massimo Righi | Cast | Actor | Bandido |
 Nazzareno Natale | Cast | Actor | Bandido (uncredited) |
 Nazzareno Zamperla | Cast | Actor | Peter MacGregor |
 Paolo Magalotti | Cast | Actor | Kenneth MacGregor |
 Perla Cristal | Cast | Actress | Perla |
 Pierre Cressoy | Cast | Actor | Bandido |
 Rafael Bardem | Cast | Judge Garland | |
 Rafael Hernández | Cast | Actor | Barman (uncredited) |
 Robert Woods | Cast | Actor | Gregor MacGregor |
 Saturno Cerra | Cast | Actor | Johnny MacGregor |
 Víctor Israel | Cast | Actor | Pianist (uncredited) |
Ángel Menéndez | Cast | Banquero (uncredited) | |
 Xan das Bolas | Cast | Actor | Barman (uncredited) |
Pilar Truchado | Cast | Barbara (uncredited) | |
| Person | Type | Job | Role(s) |
