Two outlaws compete with each other over a treasure map that will lead them to buried gold while one of them is in league with a sadistic priest-turned-crime lord, while a young Native American girl helps both outlaws and plays both sides against each other.
Unfortunately the movie Roy Colt and Winchester Jack is not yet available on HBO Max.
| Directing | Mario Bava | Director |
| Writing | Mario Di Nardo | Story |
| Writing | Mario Di Nardo | Screenplay |
| Production | Arrigo Peri | Unit Manager |
| Production | Alfonso Cucci | Unit Manager |
| Production | Francesco Tupini | Production Secretary |
| Directing | Marisa Agostini | Script Supervisor |
| Directing | Lamberto Bava | First Assistant Director |
| Art | Oscar Capponi | Assistant Production Design |
| Costume & Make-Up | Sandro Melaranci | Makeup Artist |
| Costume & Make-Up | Sergio Gennari | Hairstylist |
| Camera | Armando Pietrangeli | Still Photographer |
| Sound | Guido Felicioni | Sound |
| Sound | Carlo Spagnardi | Boom Operator |
| Camera | Emilio Varriano | Camera Operator |
| Camera | Gianlorenzo Battaglia | Assistant Camera |
| Editing | Liliana Serra | Assistant Editor |
| Crew | Bruno Ukmar | Master at Arms |
| Sound | Piero Umiliani | Original Music Composer |
| Production | Luigi Alessi | Production Manager |
| Production | Pietro Bregni | Producer |
| Production | Mario Bregni | Producer |
| Camera | Antonio Rinaldi | Director of Photography |
| Editing | Olga Pedrini | Editor |
| Art | Giulia Mafai | Production Design |
