Lorne Greene Ben Cartwright Actor Michael Landon Little Joe Cartwright Actor Dan Blocker Eric "Hoss" Cartwright Actor Pernell Roberts Adam Cartwright Actor Ed Nelson Guest Star Patricia Breslin Guest Star Mort Mills Guest Star Jean Inness Guest Star Robert Adler Guest Star Raymond Bailey Guest Star Bill Quinn Guest Star Tol Avery Guest Star James W. Lane Executive Producer David Dortort Producer Frank Cleaver Writer Preston Wood Writer Don McDougall Director