Gary Cooper as Blayde "Reb" Hollister

Ruth Roman as Tonia Robles

Steve Cochran as Bryant Marlow

Raymond Massey as Will Marlow

Barbara Payton as Flo

Leif Erickson as U.S. Marshal Martin Weatherby

Antonio Moreno as Don Felipe Robles

Jerome Cowan as Matt Coulter

Reed Hadley as Wild Bill Hickok

Gil Donaldson as Luis Robles

Will Wright as Judge Harper

Byron Keith as Jason Trask

Joe Dominguez as Carlos

Steve Dunhill as Dink

Art Felix as Vaquero

Charles Horvath as Cowpuncher

Zon Murray as Longfellow Cullen Marlow