Anthony Steffen

Character: Lieutenant 'Garringo' Harris

Solvi Stübing

Character: Julie

Raf Baldassarre

Character: Damon

Frank Braña

Character: Bill

José Bódalo

Character: Sheriff Klaus

Antonio Molino Rojo

Character: Harriman

María Salerno

Character: Nancy Grayson (as Marta Monterrey)

Peter Lee Lawrence

Character: Johnny

Luis Marín

Character: Pete, Bounty Hunter

Barta Barri

Character: Wilson (as Barta Barry)

Rossana Rovere

Character: Sarah

Lorenzo Robledo

Character: Deputy Sheriff Tom

Luis Induni

Character: Dr. Grayson

Guillermo Méndez

Character: Johnny's Henchman

Xan das Bolas

Character: Potter (uncredited)

Beni Deus

Character: Padre de Johnny (uncredited)

Tito García

Character: Ted (uncredited)

Rafael Hernández

Character: Militar (uncredited)

A. Lawrence

Character: Johnny de niño (uncredited)

Ángel Menéndez

Character: Coronel (uncredited)

Mario Morales

Character: Telegrafista (uncredited)

José Moreno

Character: Fred (uncredited)

Maribel del Pozo

Character: Julie de niña (uncredited)

Alfonso Rojas

Character: Coronel (uncredited)

Carlos Romero Marchent

Character: Bob (uncredited)

Santiago Santos

Character: Amigo de Sam y Bill (uncredited)