Jack Buetel
Billy the Kid

Jane Russell
Rio McDonald

Thomas Mitchell
Pat Garrett

Walter Huston
Doc Holliday

Mimi Aguglia
Guadalupe

Joe Sawyer
Charley Woodruff

Gene Rizzi
Stranger

Bobby Callahan
Boy (uncredited)

Martín Garralaga
Mike the Waiter (uncredited)

Ben Johnson
Deputy (uncredited)

Dickie Jones
Boy (uncredited)

Cecil Kellogg
Deputy (uncredited)

Ethan Laidlaw
Deputy (uncredited)

Ted Mapes
Deputy (uncredited)

William Newell
Drunken Cowboy (uncredited)

Emory Parnell
Dolan (uncredited)

Edward Peil Sr.
Swanson (uncredited)

Wallace Reid Jr.
Townsman (uncredited)

Julian Rivero
Pablo (uncredited)

Lee Shumway
Card Dealer (uncredited)