- 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 interpreta a Groggy, Member of Indio's Gang en la película.
Klaus Kinski hace el papel de Juan Wild - The Hunchback.
Joseph Egger interpreta a Old Prophet en la película.
Panos Papadopulos interpreta a Sancho Perez, Member of Indio's Gang en la película.
Mara Krupp interpreta a Mary en la película.
Benito Stefanelli interpreta a Luke 'Hughie' en la película.
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 interpreta a Tucumcari Sheriff en la película.
Lorenzo Robledo hace el papel de Tomaso, Indio's Traitor.
Sergio Mendizábal hace el papel de Tucumcari Bank Manager.
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 interpreta a Train Conductor en la película.
Mario Brega interpreta a Niño, Member of Indio's Gang en la película.
José Terrón interpreta a Guy Calloway, Mortimer's 1st Criminal (uncredited) en la película.
José Marco interpreta a 'Baby' Red Cavanaugh (uncredited) en la película.
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 interpreta a Chico, Member of Indio's Gang (uncredited) en la película.
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 interpreta a White Rocks Sheriff (uncredited) en la película.
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 interpreta a Poker Player (uncredited) en la película.
Antoñito Ruiz interpreta a Fernando (uncredited) en la película.
Román Ariznavarreta hace el papel de Half-Shaved Bounty Hunter (uncredited).
Joseph Bradley interpreta a El Paso Tavern Keeper (uncredited) en la película.
Fernando Di Leo hace el papel de Cigar Smoking Card Player (uncredited).
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 hace el papel de Whistling Bounty Hunter (voice) (uncredited).
Rafael López interpreta a (uncredited) en la película.
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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