Robert Ryan as Marshal Cass Silver

Virginia Mayo as Sally

Jeffrey Hunter as Thad Anderson

Robert Middleton as Honest John Barrett

Walter Brennan as Jake

Arthur O'Connell as Jim Dexter

Rodolfo Acosta as Chico

Ken Clark as Pike

George Mathews as Dillon

Fay Roope as Markham

Edward Platt as Dr. Barlow

Whit Bissell as Mr. Sam Bolton

Robert Adler as Poker Player (uncredited)

Walter Bacon as Townsman (uncredited)

Don Brodie as Hotel Clerk (uncredited)

Paul E. Burns as Billy Smith (uncredited)

Harry Carter as Houseman (uncredited)

Noble 'Kid' Chissell as Townsman (uncredited)

Jackie Coogan as Man on Make (uncredited)

Steve Darrell as George, trail boss (uncredited)

Richard Deacon as Barber (uncredited)

William Fawcett as Driver (uncredited)

Frank Gerstle as Tim (uncredited)

Michael Jeffers as Townsman (uncredited)

Dick Johnstone as Saloon Dealer (uncredited)

I. Stanford Jolley as Crooked Card-Player (uncredited)

Joe Phillips as Townsman (uncredited)

Joe Ploski as Barfly (uncredited)

Bob Reeves as Townsman (uncredited)

Ray Spiker as Townsman (uncredited)

Charles Tannen as 2nd Foreman (uncredited)

Ken Terrell as The Weasel (uncredited)

Jack Tornek as Townsman (uncredited)