This spaghetti western presents a fictitious version of the often filmed legend of Pat Garrett and Billy the Kid. Billy becomes innocently an outlaw while protecting his mother, but then turns into a trigger happy killer. When he falls in love he tries with the help of Pat Garrett, a fatherly friend, to change back. However, circumstances force Billy to become violent again and it is Garrett who is credited with the killing.
William 'Billy the Kid' Bonney
Pat Garrett
Helen Tunstill
Mrs. Kathleen Bonney
Jackson Murphy
Mark Travis
John Tunstill
Hank - Fort Summer Saloonkeeper
Governor of New Mexico
Peddler
Mark Liston
Rancher - Tunstill's Neighbor
Paul Powers - Tunstill's Foreman
Maurice - Travis's Henchman
Raul Alonso - Rustler Leader
Peter 'Mac' MacGregor
Tom MacGregor
Manuel Albarca - Gravedigger
Cavalry Lieutnant
Peter - Helen's Uncle
Mrs. Huerte
Mrs. Patterson
General
Greg - Travis's Henchman
Jake - Travis's Henchman
Hols - Travis's Henchman
Silver City Saloonkeeper
Cotilla
Erasco Colmenero
Ciudadano (uncredited)
Pablo - Garcia's Henchman / Cattle Rustler (uncredited)
MacGregor's Henchman (uncredited)
Bocazas (uncredited)
Aguador (uncredited)
Murphy's Henchman (uncredited)
Barman (uncredited)
Aguador (uncredited)
Aguador (uncredited)
Francisco (uncredited)
Ciudadana (uncredited)
Ciudadano (uncredited)
Ciudadano (uncredited)
Hotelero (uncredited)
Jugador (uncredited)
Mexican Landowner (uncredited)
José Gonzalez (uncredited)
Comprador de armas (uncredited)
Ciudadano (uncredited)
Store Customer (uncredited)