Burt Lancaster as Valdez

Susan Clark as Gay Erin

Frank Silvera as Diego

Jon Cypher as Frank Tanner

Richard Jordan as R. L. Davis

Barton Heyman as El Segundo

Héctor Elizondo as Mexican Rider

Phil Brown as Malson

Ralph Brown as Beaudry

Werner Hasselmann as Sheriff

Lex Monson as Rincon

Sylvia Poggioli as Segundo's Girl

José García García as Carlos

María Montez as Anita

Juanita Penaloza as Indian Woman

Marta Tuch as Rosa

Juan Fernández as Mexican Buyer

Rudy Ugland as First Tracker

Tony Epper as Bodyguard

Vic Albert as Townsman #1

Per Barclay as Townsman #2

Allen Russell as Townsman #3

James Lemp as Point Rider

Raoul Castro as Young Mexican

Nick Cravat as Gang Member (uncredited)

Concha Hombria as Inez (uncredited)

Mario Barros as Gang Member (uncredited)

Santiago García as Gang Member (uncredited)

Roberta Haynes as Polly (uncredited)

Michael Hinn as Merchant (uncredited)

Lisardo Iglesias as Rider (uncredited)

Jefferson Kibbee as Gang Member (uncredited)

Lincoln Kibbee as Gang Member (uncredited)

Ian "Quincy" Maclean as Gang Member (uncredited)

Tom McFadden as Gang Member (uncredited)

José Morales as Gang Member (uncredited)

Joaquín Parra as Tracker (uncredited)

Santiago Santos as Rider (uncredited)

Mario Sanz as Gang Member (uncredited)

Lee Thaxton as Gang Member (uncredited)

Robin Thaxton as Gang Member (uncredited)

Juan Manuel Torres Gómez as Minor Role (uncredited)

Julian Vidrie as Gang Member (uncredited)

Manolin Vidrie as Gang Member (uncredited)