Lorne Greene Ben Cartwright Actor Michael Landon Little Joe Cartwright Actor Dan Blocker Eric "Hoss" Cartwright Actor Pernell Roberts Adam Cartwright Actor Lisa Lu Guest Star Richard Loo Guest Star Philip Ahn Guest Star Benson Fong Guest Star Mort Mills Guest Star Harry Lauter Guest Star James W. Lane Executive Producer David Dortort Producer John T. Dugan Writer Don McDougall Director