 Gian Maria VolontéProfessor Brett Fletcher | Professor Brett Fletcher |
 Tomas MilianSolomon 'Beauregard' Bennet | Solomon 'Beauregard' Bennet |
 William BergerCharley Siringo | Charley Siringo |
 Jolanda ModioMaria | Maria |
 Gianni RizzoWilliams | Williams |
 Carole AndréCattle Annie | Cattle Annie |
 Ángel del PozoMaximilian de Winton | Maximilian de Winton |
 Aldo SambrellZachary Shawn | Zachary Shawn |
 Nello PazzafiniVance | Vance |
 José TorresAaron Chase | Aaron Chase |
 Linda VerasCathy, Fletcher's Mistress | Cathy, Fletcher's Mistress |
 Antonio CasasLeading Citizen of Puerto del Fuego | Leading Citizen of Puerto del Fuego |
 Frank BrañaJason | Jason |
 Guy HeronSheriff at de Winton Estate | Sheriff at de Winton Estate |
 Lorenzo RobledoWallace | Wallace |
 Rossella D'AquinoSandy / Sally | Sandy / Sally |
 Giovanni Ivan ScratugliaTaylor Henchman | Taylor Henchman |
 Lidia AlfonsiBelle de Winton | Belle de Winton |
| FFederico BoidoPurgatory City Sheriff (uncredited) | Purgatory City Sheriff (uncredited) |
 Calisto CalistiWillow Creek Sheriff (uncredited) | Willow Creek Sheriff (uncredited) |
 Remo CapitaniTaylor Henchman (uncredited) | Taylor Henchman (uncredited) |
 Antonella Della PortaElizabeth Wilkins (uncredited) | Elizabeth Wilkins (uncredited) |
 Vera DrudiMrs. Watson / Mrs. Lee (uncredited) | Mrs. Watson / Mrs. Lee (uncredited) |
 Andrea FantasiaGang Member (uncredited) | Gang Member (uncredited) |
 Antonio GradoliCarson, Silvertown Sheriff (uncredited) | Carson, Silvertown Sheriff (uncredited) |
 John KarlsenUniversity Dean (uncredited) | University Dean (uncredited) |
 Guillermo MéndezMan at Puerto del Fuego (uncredited) | Man at Puerto del Fuego (uncredited) |
 Fulvio MingozziBank Customer (uncredited) | Bank Customer (uncredited) |
 Gastone MoschinMan at Puerto del Fuego (uncredited) | Man at Puerto del Fuego (uncredited) |
| JJoaquín ParraDeputy at Way Station (uncredited) | Deputy at Way Station (uncredited) |
