- Roberto Camardiel - Tucumcari Station Clerk
- Aldo Sambrell - Cuchillo
- Tomás Blanco - Tucumcari Sheriff
- Lorenzo Robledo - Tomaso, Indio's Traitor
- Sergio Mendizábal - Tucumcari Bank Manager
- Dante Maggio - Carpenter in Cell with El Indio
- Mario Brega - Niño, Member of Indio's Gang
- José Terrón - Guy Calloway, Mortimer's 1st Criminal (uncredited)
- José Marco - 'Baby' Red Cavanaugh (uncredited)
- Werner Abrolat - Slim, Member of Indio's Gang (uncredited)
- Frank Braña - Blackie, Member of Indio's Gang (uncredited)
- José Canalejas - Chico, Member of Indio's Gang (uncredited)
- Antonio Molino Rojo - Frisco, Member of Indio's Gang (uncredited)
- Jesús Guzmán - Carpetbagger on Train (uncredited)
- Ricardo Palacios - Tucumcari Saloon Keeper (uncredited)
- Guillermo Méndez - White Rocks Sheriff (uncredited)
- Rosemary Dexter - Mortimer's Sister (uncredited)
- Peter Lee Lawrence - Mortimer's Brother-in-Law (uncredited)
- Kurt Zips - Hotel Manager (uncredited)
- Enrique Navarro - (uncredited)
- Bruno Corazzari - Poker Player (uncredited)
- Antoñito Ruiz - Fernando (uncredited)
- Román Ariznavarreta - Half-Shaved Bounty Hunter (uncredited)
- Fernando Di Leo - Cigar Smoking Card Player (uncredited)
- Eduardo García - Member of Indio's Gang (uncredited)
- Sergio Leone - Whistling Bounty Hunter (voice) (uncredited)
- Rafael López - (uncredited)
- Sergio Leone
- Fernando Di Leo
- Tonino Valerii
- Julio Sempere
- Sergio Leone
- Sergio Leone
- Alfredo Fraile
- Norberto Solino
- Antonio Palombi
- Luis Beltrán
- Ennio Morricone
- Ennio Morricone
- Oscar De Arcangelis
- Alessandro Alessandroni
- Bruno Nicolai
- Michele Lacerenza
Clint Eastwood interpreta a Manco en la película.
Lee Van Cleef interpreta a Col. Douglas Mortimer en la película.
Gian Maria Volonté interpreta a El Indio en la película.
Luigi Pistilli hace el papel de Groggy, Member of Indio's Gang.
Klaus Kinski interpreta a Juan Wild - The Hunchback en la película.
Joseph Egger interpreta a Old Prophet en la película.
Panos Papadopulos hace el papel de Sancho Perez, Member of Indio's Gang.
Mara Krupp hace el papel de Mary.
Benito Stefanelli hace el papel de Luke 'Hughie'.
Roberto Camardiel interpreta a Tucumcari Station Clerk en la película.
Aldo Sambrell interpreta a Cuchillo en la película.
Luis Rodríguez interpreta a Manuel, Member of Indio's Gang en la película.
Tomás Blanco hace el papel de Tucumcari Sheriff.
Lorenzo Robledo interpreta a Tomaso, Indio's Traitor en la película.
Sergio Mendizábal interpreta a Tucumcari Bank Manager en la película.
Dante Maggio interpreta a Carpenter in Cell with El Indio en la película.
Diana Rabito interpreta a Callaway's Beautiful Girl in Tub en la película.
Giovanni Tarallo interpreta a Santa Cruz Telegraphist en la película.
Mario Meniconi hace el papel de Train Conductor.
Mario Brega interpreta a Niño, Member of Indio's Gang en la película.
José Terrón hace el papel de Guy Calloway, Mortimer's 1st Criminal (uncredited).
José Marco hace el papel de 'Baby' Red Cavanaugh (uncredited).
Werner Abrolat interpreta a Slim, Member of Indio's Gang (uncredited) en la película.
Frank Braña hace el papel de Blackie, Member of Indio's Gang (uncredited).
José Canalejas hace el papel de Chico, Member of Indio's Gang (uncredited).
Antonio Molino Rojo interpreta a Frisco, Member of Indio's Gang (uncredited) en la película.
Jesús Guzmán interpreta a Carpetbagger on Train (uncredited) en la película.
Ricardo Palacios interpreta a Tucumcari Saloon Keeper (uncredited) en la película.
Guillermo Méndez hace el papel de White Rocks Sheriff (uncredited).
Rosemary Dexter interpreta a Mortimer's Sister (uncredited) en la película.
Peter Lee Lawrence interpreta a Mortimer's Brother-in-Law (uncredited) en la película.
Kurt Zips interpreta a Hotel Manager (uncredited) en la película.
Enrique Navarro interpreta a (uncredited) en la película.
Bruno Corazzari hace el papel de Poker Player (uncredited).
Antoñito Ruiz interpreta a Fernando (uncredited) en la película.
Román Ariznavarreta interpreta a Half-Shaved Bounty Hunter (uncredited) en la película.
Joseph Bradley hace el papel de El Paso Tavern Keeper (uncredited).
Fernando Di Leo interpreta a Cigar Smoking Card Player (uncredited) en la película.
Eduardo García interpreta a Member of Indio's Gang (uncredited) en la película.
Francesca Leone interpreta a Tomaso's Baby (uncredited) en la película.
Sergio Leone interpreta a Whistling Bounty Hunter (voice) (uncredited) en la película.
Rafael López hace el papel de (uncredited).
Antonio Palombi hace el papel de Bartender (uncredited).
Enrique Santiago interpreta a Miguel, Member of Indio's Gang (uncredited) en la película.
Edmondo Tieghi interpreta a 2nd Agua Caliente Villager Watching Monco (uncredited) en la película.
Antonio Montoya interpreta a Paco, Member of Indio's Gang (as José Montoya) en la película.
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