Colonel Cord McNally

Captain Pierre Cordona (Frenchy)

Shasta Delaney

Phillips

Seargent Tuscarora Phillips

Ketcham

Maria Carmen

Amelita

Dr. Ivor Jones

Rio Lobo Deputy

Deputy Whitey Carter

Fourth Gunman

Lt. Harris

Lt. Ned Forsythe

Chuck

Third Gunman

Blackthorne Sheriff Pat Cronin

Rio Lobo Sheriff 'Blue Tom' Hendricks

Union Soldier

Hank - Hotel Clerk (uncredited)

Rio Lobo Deputy (uncredited)

Corporal in Baggage Car (uncredited)

(uncredited)

Feeny - Bartender (uncredited)

Blackthorne Prostitute (uncredited)

Bart (uncredited)

Picket (uncredited)

Rio Lobo Deputy (uncredited)

Barfly in Blackthorne (uncredited)

Man in Army Post Saloon (uncredited)

Rio Lobo Deputy (uncredited)

Train Engineer (uncredited)

Man in Army Post Saloon (uncredited)

Pete - Henchman (uncredited)

Man Delivering Message to Jail (uncredited)

Card Player (uncredited)

Guitar Player in Opening Credits (uncredited)