Gary Cooper as Marshal Will Kane

Thomas Mitchell as Mayor Jonas Henderson

Lloyd Bridges as Deputy Marshal Harvey Pell

Katy Jurado as Helen Ramírez

Grace Kelly as Amy Fowler Kane

Otto Kruger as Judge Percy Mettrick

Lon Chaney Jr. as Martin Howe

Harry Morgan as Sam Fuller

Ian MacDonald as Frank Miller

Eve McVeagh as Mildred Fuller

Morgan Farley as Dr. Mahin

Harry Shannon as Cooper

Lee Van Cleef as Jack Colby

Robert J. Wilke as Jim Pierce

Sheb Wooley as Ben Miller

Lee Aaker as Boy (uncredited)

Ernest Baldwin as Townsman (uncredited)

Benjie Bancroft as Church Member (uncredited)

Guy Beach as Fred - Coffinmaker (uncredited)

George Bell as Townsman (uncredited)

Jeanne Blackford as Mrs. Henderson (uncredited)

Larry J. Blake as Gillis - Saloon Owner (uncredited)

John Breen as Church Member (uncredited)

Roy Bucko as Barfly (uncredited)

Nora Bush as Townswoman (uncredited)

Robert Carson as Barfly (uncredited)

John Cason as Barfly (uncredited)

Howland Chamberlain as Hotel Clerk (uncredited)

Virginia Christine as Mrs. Simpson (uncredited)

Cliff Clark as Ed Weaver (uncredited)

Ben Corbett as Townsman (uncredited)

Russell Custer as Barfly (uncredited)

John Doucette as Trumbull (uncredited)

Tex Driscoll as Church Member (uncredited)

Paul Dubov as Scott (uncredited)

Jack Elam as Charlie - Drunk in Jail (uncredited)

Dick Elliott as Kibbee (uncredited)

Virginia Farmer as Mrs. Fletcher (uncredited)

Joe Garcio as Barfly (uncredited)

Rudy Germane as Townsman (uncredited)

Herschel Graham as Church Member (uncredited)

Tim Graham as Sawyer (uncredited)

Tom Greenway as Ezra (uncredited)

Harry Harvey as Coy (uncredited)

Chuck Hayward as Townsman (uncredited)

Tex Holden as Barfly (uncredited)

Michael Jeffers as Townsman (uncredited)

Kay Koury as Townswoman (uncredited)

Paul Kruger as Church Member (uncredited)

Ann Kunde as Townswoman (uncredited)

Nolan Leary as Lewis (uncredited)

Tom London as Sam (uncredited)

Merrill McCormick as Fletcher (uncredited)

Billy McCoy as Townsman (uncredited)

James Millican as Deputy Sheriff Herb Baker (uncredited)

Kansas Moehring as Townsman (uncredited)

Jack Montgomery as Townsman (uncredited)

William Newell as Jimmy - Drunk with Eye Patch (uncredited)

William H. O'Brien as Church Member (uncredited)

Artie Ortego as Barfly (uncredited)

William Phillips as Barber (uncredited)

Lucien Prival as Joe - Ramirez Saloon Bartender (uncredited)

Ralph Reed as Johnny - Town Boy (uncredited)

Orie Robertson as Townsman (uncredited)

Buddy Roosevelt as Townsman (uncredited)

Allen D. Sewall as Townsman (uncredited)

Lucile Sewall as Townswoman (uncredited)

Charles Soldani as Indian Outside of Saloon (uncredited)

Ted Stanhope as Station Master (uncredited)

Steve Stephens as Barfly (uncredited)

Slim Talbot as Barbershop Customer (uncredited)

Jack Tornek as Barfly (uncredited)