Sal Mineo

White Bull

Philip Carey

Captain Myles Keogh

Jerome Courtland

Lieutenant Henry Nowlan

H.M. Wynant

Yellow Bull

Joy Page

Prairie Flower

Britt Lomond

General George Armstrong Custer

Rafael Campos

Strong Bear

Herbert Rudley

Captain Benteen

Sydney Smith

General Alfred Howe Terry

John War Eagle

Chief Sitting Bull

Gregg Martell

Corporal Korn

Slim Pickens

Ace

Robert "Buzz" Henry

Lieutenant Crittenden (as Robert Buzz Henry)

Eddie Little Sky

Spotted Tail (uncredited)

Al Wyatt Sr.

Trooper (uncredited)