James Arness Marshal Matt Dillion Actor Milburn Stone Dr. Galen "Doc" Adams Actor Amanda Blake Kitty Russell Actor Ken Curtis Festus Guest Star Roger Ewing Thad Guest Star Fritz Weaver Marshal Burl Masters Guest Star Delphi Lawrence Willa Prayther Guest Star William "Billy" Benedict Gus Guest Star Valentin de Vargas Cheeno Guest Star Carlos Rivas Trail Guest Star David Renard Boley Guest Star Lew Brown Fret Smith Guest Star John Mantley Producer Clyde Ware Writer Allen Reisner Director