Franco Nero
Yodlaf Peterson
Reparto
Tomas Milian
El Vasco
Jack Palance
John
Fernando Rey
Prof. Xantos
Iris Berben
Lola
José Bódalo
General Mongo Alvarez
Karin Schubert
Zaire Harris
Eduardo Fajardo
Colonel
Gino Pernice
Tourneur
Tito García
Tiger
Gérard Tichy
Lieutenant
Lorenzo Robledo
Captain Jim
Álvaro de Luna
John's Henchman
Jesús Fernández
Teenage Xantista
Claudio Scarchilli
Mexican Officer
Giovanni Petti
Mexican Border Officer
Gianni Pulone
John's Henchman
Rafael Albaicín
Mongo Henchman (uncredited)
