Sergio Ciani as William Smith / Samson

Mario Petri as Jerry Darmon

Toni Sailer as Alan Fox

Wolfgang Lukschy as El Puma

Anna Maria Polani as Queen Mysia

Pierre Cressoy as Vince

Harry Riebauer as Sheriff

Brigitte Heiberg as Jenny Nixon

Dada Gallotti as Ilona

Attilio Severini as Grizzly

Carlo Tamberlani as Burt Nixon

Gino Marturano as Barracuda

Elisabetta Fanti as Urpia

Federico Boido as Tex

Rosy De Leo as

Bruno Scipioni as Darmon Henchman

Franco Jamonte as Darmon's Accomplice

Giulio Tomei as Totac - Mysia's Father

Antonio Gradoli as Castoro

Andrea Scotti as Stagecoach Traveller

Umberto Spadaro as Darmon Henchman

Amedeo Trilli as Barber

Gianni Baghino as Drunk in Dance Hall (uncredited)

Ignazio Balsamo as Sergeant (uncredited)

Gilberto Galimberti as Aztec (uncredited)

Omero Gargano as Bartender (uncredited)

Claudio Scarchilli as Dance Hall Customer (uncredited)

Romano Moraschini as Bartender (uncredited)