Franco Nero

Character: Onion Stark

Sterling Hayden

Character: Henry 'Jack' Pullitzer

Martin Balsam

Character: Petrus Lamb

Leo Anchóriz

Character: Sheriff

Romano Puppo

Character: 'Nerone' Foster

Nazzareno Zamperla

Character: Oblò

Helmut Brasch

Character: Deputy Sheriff

Duilio Cruciani

Character: Cal 'Caligola' Foster

Emma Cohen

Character: Mary Ann

Dick Butkus

Character: Jeff

Enzo G. Castellari

Character: Deputy Sheriff (uncredited)

David Warbeck

Character: Villain with Sunglasses (uncredited)

Antonio Pica

Character: Hal Foster (uncredited)

Massimo Vanni

Character: Buck, Lamb Henchman

Fernando Castro

Character: Dutch Foster

Wal Davis

Character: Zeke

Dan van Husen

Character: Deputy Zachary

Agustín Bescos

Character: Oil Board Member (uncredited)

Xan das Bolas

Character: Sam - Merchant (uncredited)

Charly Bravo

Character: Judd (uncredited)

Alejandro de Enciso

Character: John (uncredited)

Leopold Francis

Character: Mack (uncredited)

Daniel Martín

Character: Jim (uncredited)

George Rigaud

Character: Terrateniente (uncredited)

Lucy Tiller

Character: Violet (uncredited)

Mariano Vidal Molina

Character: Owen (uncredited)

Manuel Zarzo

Character: Jack (uncredited)