Chuck Hayward

(uncredited)

Peter Jason

Lt. Ned Forsythe

Robert Donner

Whitey Carter

John Wayne

Col. Cord McNally

George Plimpton

George, Whitey's 4th Henchman

Jennifer O'Neill

Shasta Delaney

Victor French

Ketcham

Lance Hool

Picket (uncredited)

Sondra Currie

Blackthorne Prostitute (uncredited)

Conrad Hool

Bart (uncredited)

David Huddleston

Dr. Ivor Jones

Christopher Mitchum

Sgt. Tuscarora Phillips

Edward Faulkner

Lt. Harris

Dean Smith

Bide

Jack Elam

Phillips

Jorge Rivero

Capt. Pierre Cordona

Susana Dosamantes

Maria Carmen

Sherry Lansing

Amelita

Mike Henry

Rio Lobo Sheriff 'Blue Tom' Hendricks

Bill Williams

Blackthorne Sheriff Pat Cronin

Jim Davis

Riley

Chuck Courtney

Chuck, Whitey's 2nd Henchman

Robert Rothwell

Whitey's 3rd Henchman

Don 'Red' Barry

Feeny - Bartender (uncredited)

Howard Hawks

Director