Michael 'Gringo' O'Brien
Donald Woods
Maria Garcia
Gloria Warren
Spanish Dancer
Lusita Triana
Pablo, the traitor
Felipe Turich
Manta
Claire Du Brey
Governor's Secretary (as Drew Allan)
Gil Frye
1st Clerk, Governor's Office
Ray Dolciame
Francisco Garcia, Mission Blacksmith
Byron Foulger
Nita
Shirley O'Hara
Juan Mendoza
Anthony Warde
Governor Don Sebastian Fernando
Monte Blue
Gueyon, Garcia's Assistant
Paul Newlan
Father Xavier
David Leonard
Henchman Enrico (as Gordon Clarke)
Gordon B. Clarke
Henchman Junipero
Frank Cody
Director
Terry O. Morse
Story
Duncan Renaldo
Screenplay
Producer
Jack DeWitt
James S. Burkett
Original Music Composer
Rudy De Saxe
Editor
George McGuire
Director of Photography
Robert Pittack
Art Direction
Frank Dexter
Assistant Director
Will Sheldon