| Person | Type | Job | Role(s) |
|---|---|---|---|
 Aldo Giordani | Crew | Camera | Director of Photography |
Angelo Lannutti | Crew | Camera | Camera Operator |
Antonio Siciliano | Crew | Editing | Editor |
 Enzo Barboni | Crew | Directing | Director, Screenplay |
 Enzo Bulgarelli | Crew | Art | Production Design, Costume Design |
Ezio Palaggi | Crew | Production | Executive Producer |
Fausto De Lisio | Crew | Costume & Make-Up | Hair Designer |
Franco Palaggi | Crew | Production | Production Manager |
Gene Luotto | Crew | Writing | Dialogue, Dialogue Editor |
 Giorgio Ubaldi | Crew | Directing | Assistant Director |
 Guido De Angelis | Crew | Sound | Original Music Composer |
 Joseph E. Levine | Crew | Production | Executive Producer |
Luciano Giustini | Crew | Costume & Make-Up | Makeup Artist |
 Maurizio De Angelis | Crew | Sound | Original Music Composer |
Roberto Palaggi | Crew | Production | Executive Producer |
Sergio Chiusi | Crew | Crew | Special Effects |
Stefano Bulgarelli | Crew | Art | Set Dresser |
 Italo Zingarelli | Crew | Production | Producer |
Anna Onori | Crew | Costume & Make-Up | Wardrobe Assistant |
Giuliano Corso | Crew | Editing | Assistant Editor |
Franco Groppioni | Crew | Sound | Sound Engineer |
Maria Luisa Rosen | Crew | Directing | Script Supervisor |
Ruggero Cappelli | Crew | Production | Unit Manager |
 Adriano Micantoni | Cast | Actor | Deputy |
 Antonio Monselesan | Cast | Actor | Wildcat Hendricks |
 Benito Stefanelli | Cast | Actor | Stingary Smith |
Bruno Boschetti | Cast | ||
 Bud Spencer | Cast | Actor | Bambino |
 Dana Ghia | Cast | Actress | Perla's Mother |
Emilio Delle Piane | Cast | James Parker | |
 Enzo Fiermonte | Cast | Actor | Perla's Father |
 Enzo Tarascio | Cast | Actor | Mitch, Sheriff |
 Fortunato Arena | Cast | Actor | Parker Henchman |
 Franco Ressel | Cast | Actor | Maitre D' |
 Gilberto Galimberti | Cast | Actor | Poker player with eye patch |
 Gildo Di Marco | Cast | Actor | Peasant injured by monks |
 Gérard Landry | Cast | Actor | Clark |
 Harry Carey, Jr. | Cast | Actor | Father |
 Jean Louis | Cast | Actor | Murdock |
 Jessica Dublin | Cast | Actress | Mother |
 Luigi Bonos | Cast | Actor | Bartender Ozgur |
 Pupo De Luca | Cast | Actor | Prior |
 Riccardo Pizzuti | Cast | Actor | Chief of the Dallas gunmen |
 Terence Hill | Cast | Actor | Trinity |
 Vittorio Fanfoni | Cast | Actor | |
 Yanti Somer | Cast | Actress | Perla |
 Renzo Pevarello | Cast | Actor | Hitman at Mission (uncredited) |
 Nello Palladino | Cast | Stevens (uncredited) | |
| Person | Type | Job | Role(s) |
