Hugh O'Brian

as Wyatt Earp

Bruce Boxleitner

as Sam, Sheriff of Cochise County

Paul Brinegar

as Jim 'Dog' Kelly

Harry Carey, Jr.

as Digger Phelps

Bo Hopkins

as Rattlesnake Reynolds

Alex Hyde-White

as Woodworth Clum

Martin Kove

as Ed Ross

Don Meredith

as Clay the Bartender

Jay Underwood

as Jack Montgomery

Douglas Fowley

as Doc Holliday / Doc Fabrique (flashback sequences) (archive footage)

John Anderson

as Virgil Earp (flashback sequence) (archive footage)

Steve Brodie

as Sheriff John Behan (flashback sequence) (archive footage)

Lloyd Corrigan

as Ned Buntline (flashback sequence) (archive footage)

Gordon Wynn

as Colonel Warren (Flashback Sequence)