James Arness Marshal Matt Dillion Actor Milburn Stone Dr. Galen "Doc" Adams Actor Amanda Blake Kitty Russell Actor Buck Taylor Newly Guest Star Ken Curtis Festus Guest Star Ted Jordan Nathan Burke Guest Star Bruce Dern Guerin Guest Star Lou Antonio Mace Guest Star Russell Johnson Diggs Guest Star Susan Silo Rita Lane Guest Star Robert Totten Ben Miller Guest Star Robert Brubaker Henry Wade Guest Star Tex Holman Broker Guest Star Matt Emery Keever Guest Star John Mantley Producer Paul Savage Writer Richard Carr Writer John Rich Director