Gian Maria Volonté
— Professor Brett Fletcher
Tomas Milian
— Solomon 'Beauregard' Bennet
William Berger
— Charley Siringo
Jolanda Modio
— Maria
Gianni Rizzo
— Williams
Carole André
— Elizabeth Wilkins
Ángel del Pozo
— Maximilian de Winton
Aldo Sambrell
— Zachary Shawn
Nello Pazzafini
— Vance
José Torres
— Aaron Chase
Linda Veras
— Cathy
Antonio Casas
— Leading Citizen of Puerto del Fuego
Frank Braña
— Jason
Lorenzo Robledo
— Wallace
Guy Heron
— Sheriff at de Winton Estate
Rossella D'Aquino
— Sandy / Sally
Giovanni Ivan Scratuglia
— Taylor Henchman
Lidia Alfonsi
— Belle de Winton