Telly Savalas
— Vince Carden
George Maharis
— Paul Cardenas
Arlene Dahl
— Martha Carden
Janet Landgard
— Kate Mayfield
Guy Rolfe
— Major Tanner
George Coulouris
— Cardenas
Susan Harvey
— Mrs. Ruth Willis (uncredited)
Paul Picerni
— Carney / Arturo
Phil Brown
— Sheriff John Mayfield
Jocelyn Lane
— Luisa Rojas
Fernando Rey
— Priest
Robert Carricart
— Julio Rojas
John Clark
— Ace
Charles Stalmaker
— Frank Willis
Marcella Saint-Amant
— Luisa Montoya
Gustavo Rojo
— Indio