Lorne Greene Ben Cartwright Actor Michael Landon Little Joe Cartwright Actor Dan Blocker Eric "Hoss" Cartwright Actor Pernell Roberts Adam Cartwright Actor Julie Adams Helen Layton Guest Star Paul Dubov Frank the Card Dealer Guest Star Marshall Reed Hammond Guest Star Lyle Talbot The Handsome Dude in Bar Guest Star Lou Krugman Jean Guest Star Charles Tannen Charlie the Bartender Guest Star James W. Lane Executive Producer David Dortort Producer Richard Neil Morgan Writer James P. Yarbrough Director