James Garner as Marshal Wyatt Earp

Jason Robards as Doc Holliday

Robert Ryan as Ike Clanton

Albert Salmi as Octavius Roy

Charles Aidman as Horace Sullivan

Steve Ihnat as Andy Warshaw

Michael Tolan as Pete Spence

William Windom as Texas Jack Vermillion

Lonny Chapman as Turkey Creek Johnson

Larry Gates as John P. Clum

William Schallert as Judge Herman Spicer

Karl Swenson as Dr. Charles Goodfellow

Monte Markham as Tucson Sheriff Sherman McMasters

Jon Voight as Curly Bill Brocius

Bill Fletcher as Jimmy Bryan

Austin Willis as Anson Safford

Richard Bull as Thomas Fitch

Sam Melville as Morgan Earp

Frank Converse as Virgil Earp

Robert Phillips as Frank Stilwell

Jorge Russek as Deputy Latigo