John Wayne
Role: Capt. Nathan Cutting Brittles
Joanne Dru
Role: Olivia Dandridge
John Agar
Role: Lt. Flint Cohill
Ben Johnson
Role: Sgt. Tyree
Harry Carey, Jr.
Role: 2nd Lt. Ross Pennell
Victor McLaglen
Role: First Sergeant Quincannon
Mildred Natwick
Role: Abby Allshard ("Old Iron Pants")
George O'Brien
Role: Maj. Mac Allshard
Arthur Shields
Role: Dr. O'Laughlin
Michael Dugan
Role: Sgt. Hochbauer
Chief John Big Tree
Role: Chief Pony That Walks
Fred Graham
Role: Sgt. Hench
George Sky Eagle
Role: Chief Sky Eagle
Tom Tyler
Role: Cpl. Mike Quayne
Noble Johnson
Role: Chief Red Shirt
Paul Fix
Role: Gunrunner (uncredited)
Francis Ford
Role: Connelly - Fort Stark Suttlers Barman (uncredited)
Cliff Lyons
Role: Trooper Cliff (uncredited)
Frank McGrath
Role: Bugler / Indian (uncredited)
Irving Pichel
Role: Narrator (voice) (uncredited)
William Steele
Role: Officer (uncredited)
Jack Tornek
Role: Officer (uncredited)
Dan White
Role: Trooper (uncredited)
Harry Woods
Role: Karl Rynders (uncredited)
Peter Ortiz
Role: Gunrunner (uncredited)
Rudy Bowman
Role: Pvt. John Smith - aka Rome Clay (uncredited)
Lee Bradley
Role: Interpreter (uncredited)
Ray Hyke
Role: Trooper McCarthy (uncredited)
Billy Jones
Role: Courier (uncredited)
Fred Kennedy
Role: Badger (uncredited)
Fred Libby
Role: Cpl. Krumrein (uncredited)
Evelyn Moriarty
Role: Party Guest (uncredited)
Post Park
Role: Officer (uncredited)
Jack Pennick
Role: Sergeant Major (uncredited)
Mickey Simpson
Role: Cpl. Wagner (uncredited)
Don Summers
Role: Jenkins (uncredited)