James Arness

Zeb Macahan

Eva Marie Saint

Kate Macahan

Bruce Boxleitner

Seth Macahan

Kathryn Holcomb

Laura Macahan

William Kirby Cullen

Jed Macahan

Vicki Schreck

Jessie Macahan

Richard Kiley

Timothy Macahan

Gene Evans

Dutton

John Crawford

Hale Crowley

Victor Mohica

Billy Joe

Frank Ferguson

Grandpa

Ann Doran

Grandma

Vincent St. Cyr

Ponca Chief

Rudy Diaz

Sioux Chief

F. Allen Livers

The Runner

Jim Ward

The Mountain Man

Ben Wilson

Henry Jethro

Skip Lowell

Dying Rebel

Tom Stovall

Rebel #1

Jack Wallwork

C.O. of Fort Randall

Ben Zeller

Cavalry Major

Wright King

Infantry Captain

William Bryant

Major at Shiloh

Mayf Nutter

Jenkins

Henry Olek

Grayson

Charles Kuenstle

Sgt. Hodges

Claude Johnson

Wounded Soldier

Clark Dunbar

Aide

Lloyd Nelson

Sentry

Jonathan Banks

Woodward

Herb Robins

Polk

Joe Kurtzo

Stenner

Cliff Emmich

Bartender

Mel Stevens

Dr. Dodd

Bill Zuckert

Caldwell

Hal Baylor

Lawman

I. Stanford Jolley

Farmer

William Conrad

Narrator (voice) (uncredited)