"Two Army officers, an alcoholic ex-Confederate soldier and a womanizing Mexican travel to Mexico on a secret mission to prevent a megalomaniacal ex-Confederate colonel from selling a cache of stolen rifles to a band of murderous Apaches."
Richard Boone
as Lassiter
Stuart Whitman
as Capt. Haven
Anthony Franciosa
as Rodriguez
Wende Wagner
as Sally
Warner Anderson
as Col. Wagner
Jim Brown
as Franklyn
Rodolfo Acosta
as Bloodshirt
Barry Kelley
as Croupier
Vito Scotti
as Mexican Bandit
House Peters Jr.
as Pardee Officer
Kevin Hagen
as Blondebeard
Edmond O'Brien
as Pardee
Robert Adler
as Pardee Soldier (uncredited)
Eumenio Blanco
as Cantina Patron (uncredited)
Timothy Carey
as Chico (uncredited)
Roberto Contreras
as Mexican at Corral (uncredited)
Linda Cordova
as Mexican Girl (uncredited)
Abel Fernandez
Marie Gomez
as Anita (uncredited)
William Graeff Jr.
as Sentry (uncredited)
M. Hakim
as Houseman (uncredited)
Eve Marlowe
as Isabelle (uncredited)
Billy McCoy
as Trooper (uncredited)
Jorge Moreno
as Mexican Patrol Leader (uncredited)
Anthony Redondo
Ricki Shilaikis
as Baby Girl (uncredited)
Mickey Simpson
as Bartender (uncredited)
Richard Walsh
as Corporal of Guard (uncredited)
Gordon Douglas
Director
Clair Huffaker
Screenplay
Joseph Landon
Novel
David Weisbart
Producer
Joseph MacDonald
Director of Photography
Joseph Silver
Editor
Jerry Goldsmith
Original Music Composer
Bobby Somers
Stunts
William J. Creber
Art Direction
Jack Martin Smith
Lucien Hafley
Set Decoration
Walter M. Scott
Margaret Donovan
Hairstylist
Ben Nye
Makeup Artist
Joseph E. Rickards
Assistant Director
Al Murphy
Second Assistant Director
Walter Wiley
Construction Coordinator
Alfred Bruzlin
Sound
Elmer Raguse
Harry Proodian
Sound Recordist
Jack Coffer
Chuck Roberson
Dean Smith
Stunt Double
Troy Ward
Duke Callaghan
Camera Operator
Robert Coburn
Still Photographer
William Cronjager
Second Assistant Camera
Walt Kershner
First Assistant Camera
Earl Spicer
Gaffer
Arthur Morton
Orchestrator
Conductor