Lee Van Cleef
Col. Douglas Mortimer
Gian Maria Volonté
El Indio
Luigi Pistilli
Groggy, Member of Indio's Gang
Klaus Kinski
Juan Wild - The Hunchback
Panos Papadopulos
Sancho Perez, Member of Indio's Gang
Benito Stefanelli
Luke 'Hughie'
Roberto Camardiel
Tucumcari Station Clerk
Luis Rodríguez
Manuel, Member of Indio's Gang
Tomás Blanco
Tucumcari Sheriff
Lorenzo Robledo
Tomaso, Indio's Traitor
Sergio Mendizábal
Tucumcari Bank Manager
Dante Maggio
Carpenter in Cell with El Indio
Diana Rabito
Callaway's Beautiful Girl in Tub
Giovanni Tarallo
Santa Cruz Telegraphist
Mario Meniconi
Train Conductor
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)
Carlo Simi
El Paso Bank Manager (uncredited)
Antoñito Ruiz
Fernando (uncredited)
Román Ariznavarreta
Half-Shaved Bounty Hunter (uncredited)
Joseph Bradley
El Paso Tavern Keeper (uncredited)
Fernando Di Leo
Cigar Smoking Card Player (uncredited)
Diana Faenza
Tomaso's Wife (uncredited)
Eduardo García
Member of Indio's Gang (uncredited)
Maurizio Graf
The Balladeer (voice) (uncredited)
Francesca Leone
Tomaso's Baby (uncredited)
Sergio Leone
Whistling Bounty Hunter (voice) (uncredited)
Antonio Palombi
Bartender (uncredited)
Enrique Santiago
Miguel, Member of Indio's Gang (uncredited)
Edmondo Tieghi
2nd Agua Caliente Villager Watching Monco (uncredited)
Antonio Montoya
Paco, Member of Indio's Gang (as José Montoya)