 | Rod Steiger als Juan Miranda |
 | James Coburn als John H. Mallory |
 | Romolo Valli als Dr. Villega |
 | Maria Monti als Woman on Stagecoach |
 | Rik Battaglia als Santerna |
 | Franco Graziosi als Governor Jaime |
 | Antoine Saint-John als Col. Günther Reza |
 | Vivienne Chandler als John's Girlfriend |
 | David Warbeck als Sean Nolan |
 | Giulio Battiferri als Miguel |
 | Poldo Bendandi als Revolutionary |
 | Omar Bonaro als Revolutionary |
 | Roy Bosier als Landowner on Stagecoach |
 | John Frederick als American on Stagecoach |
| Amato Garbini als Policeman on Train |
 | Michael Harvey als Coachman |
| Biagio La Rocca |
 | Furio Meniconi als Innkeeper |
 | Nazzareno Natale |
| Vincenzo Norvese als Miranda Gang Member |
 | Stefano Oppedisano als Revolutionary |
 | Memè Perlini als Miranda's Son |
| Goffredo Pistoni als Miranda's Father |
| Renato Pontecchi als Pepe Miranda |
| Jean Rougeul als Priest on Stagecoach |
 | Corrado Solari als Napoleon Miranda |
 | Antonio Casale als Notary on Stagecoach |
 | Benito Stefanelli |
| Franco Tocci |
 | Rosita Torosh |
 | Aldo Sambrell als Mexican Officer (uncredited) |
| Florencio Amarilla als Revolutionary (uncredited) |
 | Sergio Calderón als Revolutionary (uncredited) |
 | Simon van Collem als Conductor (uncredited) |
 | Paolo Figlia als Soldier in Mesa Verde Bank (uncredited) |
 | Alberigo Donadeo als Santerna's Man (uncredited) |
 | Tony Casale als Mesa Verde Bank Prisoner (uncredited) |
 | Romano Milani als Mesa Verde Bank Prisoner (uncredited) |
| Luigi Tripodi als Revolutionary (uncredited) |
 | Claudio Mancini als Mexican Army Captain (uncredited) |
 | Riccardo Pizzuti als Santerna's Man (uncredited) |
| Franco Ukmar als Soldier in Mesa Verde Bank (uncredited) |
 | Antonio Montoya als Miranda Gang Member (uncredited) |
| Nino Baragli | Editor |
| Ennio Morricone | Original Music Composer |
| Fulvio Morsella | Producer |
| Dario Micheli | Set Decoration |
| Franco Carretti | Costume Design |
| Antonio Margheriti | Special Effects |
| Sergio Leone | Director |
| Giuseppe Ruzzolini | Director of Photography |
| Andrea Crisanti | Art Direction |
| Michael Billingsley | Sound Editor |
| Benito Stefanelli | Stunts |
| Roberto De Leonardis | Dialogue |
| Carlo Tritto | Dialogue |
| Sergio Leone | Screenplay |
| Sergio Donati | Story |
| Luciano Vincenzoni | Screenplay |
| Sergio Donati | Screenplay |
| Sergio Leone | Story |
| Idelmo Simonelli | Camera Operator |
| Amato Garbini | Makeup Artist |
| Fausto Ancillai | Sound Mixer |
| Franco Tocci | Key Grip |
| Alberto De Martino | Second Unit Director |
| Vasco Mafera | Production Secretary |
| Angelo Novi | Still Photographer |
| Tony Brandt | Assistant Director |
| Gino Bartolini | Assistant Editor |
| Ennio Morricone | Conductor |
| Claudio Mancini | Production Supervisor |
| Camillo Teti | Production Manager |
| Rossana Maiuri | First Assistant Editor |
| Serena Canevari | Continuity |
| Ugo Tucci | Associate Producer |
| Olga Sarra | Assistant Editor |
| Raffaello Forti | Production Accountant |
| Claudio Mancini | Associate Producer |
| Franco Velchi | Assistant Art Director |
| Federico Savina | Music Editor |
| Edda Dell'Orso | Musician |
| Eros Bacciucchi | Pyrotechnic Supervisor |
| Roberto Forges Davanzati | Assistant Camera |
| Giovanni Corridori | Special Effects |
| Ezio Di Monte | Assistant Art Director |
| Giancarlo Santi | Second Unit Director |
| Giovanni Corridori | Construction Coordinator |
| Massimo Massimi | Gaffer |
| Claudio Sabatini | Assistant Camera |
| Paolo Borselli | Hairstylist |
| Alessandro Ruzzolini | Assistant Camera |
| Massimiliano Terzo | Assistant Camera |
| Alessandro Alessandroni | Musician |
| Antonio Palombi | Construction Coordinator |
| Franco Delli Colli | Second Unit Director of Photography |
| Luisa Buratti | Key Costumer |
| Ennio Morricone | Orchestrator |
| Gerry Johnston | Special Effects |
| Benito Stefanelli | Master at Arms |
