John Wayne
Colonel Cord McNally
Jorge Rivero
Captain Pierre Cordona (Frenchy)
Jennifer O'Neill
Shasta Delaney
Jack Elam
Phillips
Christopher Mitchum
Seargent Tuscarora Phillips
Victor French
Ketcham
Susana Dosamantes
Maria Carmen
Sherry Lansing
Amelita
David Huddleston
Dr. Ivor Jones
Jim Davis
Rio Lobo Deputy