Lorne Greene Ben Cartwright Actor Michael Landon Little Joe Cartwright Actor Dan Blocker Eric "Hoss" Cartwright Actor Pernell Roberts Adam Cartwright Actor Wesley Lau Dave Walker Guest Star Claude Akins Marshal Emmett Dowd Guest Star Bud Osborne Charlie - Stagecoach Driver Guest Star Fintan Meyler Andrea Strasser Guest Star Ron Hayes Hurd Cutler Guest Star John Wengraf Dr. Anton Strasser Guest Star Will Wright Micah Bailey Guest Star Tom Greenway Deputy Dan Guest Star James W. Lane Executive Producer David Dortort Producer Donald S. Sanford Writer Lewis Allen Director