Kirk Douglas

Johnny Hawks

Elsa Martinelli

Onahti

Walter Matthau

Wes Todd

Diana Douglas

Susan Rogers

Walter Abel

Captain Trask

Lon Chaney Jr.

Chivington (as Lon Chaney)

Eduard Franz

Red Cloud

Harry Landers

Grey Wolf / Captain Trask Attaché

Alan Hale Jr.

Will Crabtree (as Alan Hale)

Michael Winkelman

Tommy Rogers

Elisha Cook Jr.

Briggs (as Elisha Cook)

Ray Teal

Morgan

Frank Cady

Trader Joe

Hank Worden

Crazy Bear / Guardhouse Keeper

Lane Chandler

Head Settler (uncredited)

Robert "Buzz" Henry

Lt. Shaeffer (uncredited)