Lorne Greene Ben Cartwright Actor Michael Landon Little Joe Cartwright Actor Dan Blocker Eric "Hoss" Cartwright Actor Pernell Roberts Adam Cartwright Actor Howard Duff Guest Star John Litel Guest Star Dorothy Green Guest Star Anne Whitfield Guest Star Percy Helton Guest Star Patrick McVey Guest Star Lane Bradford Guest Star Edmund Lyon Guest Star Arthur Lovejoy Guest Star Richard Carlson Guest Star James W. Lane Executive Producer David Dortort Producer Harold Shumate Writer Paul Landres Director