 John WayneCapt. Nathan Cutting Brittles | Capt. Nathan Cutting Brittles |
 Joanne DruOlivia Dandridge | Olivia Dandridge |
 John AgarLt. Flint Cohill | Lt. Flint Cohill |
 Ben JohnsonSgt. Tyree | Sgt. Tyree |
 Harry Carey, Jr.2nd Lt. Ross Pennell | 2nd Lt. Ross Pennell |
 Victor McLaglenFirst Sergeant Quincannon | First Sergeant Quincannon |
 Mildred NatwickAbby Allshard | Abby Allshard |
 George O'BrienMaj. Mac Allshard | Maj. Mac Allshard |
 Arthur ShieldsDr. O'Laughlin | Dr. O'Laughlin |
| MMichael DuganSgt. Hochbauer | Sgt. Hochbauer |
 Chief John Big TreeChief Pony That Walks | Chief Pony That Walks |
 Fred GrahamSgt. Hench | Sgt. Hench |
| GGeorge Sky EagleChief Sky Eagle | Chief Sky Eagle |
 Tom TylerCpl. Mike Quayne | Cpl. Mike Quayne |
 Noble JohnsonChief Red Shirt | Chief Red Shirt |
 Paul FixGunrunner (uncredited) | Gunrunner (uncredited) |
 Francis FordConnelly - Fort Stark Suttlers Barman (uncredited) | Connelly - Fort Stark Suttlers Barman (uncredited) |
 Cliff LyonsTrooper Cliff (uncredited) | Trooper Cliff (uncredited) |
 Frank McGrathBugler / Indian (uncredited) | Bugler / Indian (uncredited) |
 Irving PichelNarrator (voice) (uncredited) | Narrator (voice) (uncredited) |
 William SteeleOfficer (uncredited) | Officer (uncredited) |
 Jack TornekOfficer (uncredited) | Officer (uncredited) |
 Dan WhiteTrooper (uncredited) | Trooper (uncredited) |
 Harry WoodsKarl Rynders (uncredited) | Karl Rynders (uncredited) |
| PPeter OrtizGunrunner (uncredited) | Gunrunner (uncredited) |
 Rudy BowmanPvt. John Smith - aka Rome Clay (uncredited) | Pvt. John Smith - aka Rome Clay (uncredited) |
| LLee BradleyInterpreter (uncredited) | Interpreter (uncredited) |
 Ray HykeTrooper McCarthy (uncredited) | Trooper McCarthy (uncredited) |
| BBilly JonesCourier (uncredited) | Courier (uncredited) |
| FFred KennedyBadger (uncredited) | Badger (uncredited) |
