Lorne Greene Ben Cartwright Actor Michael Landon Little Joe Cartwright Actor Dan Blocker Eric "Hoss" Cartwright Actor Pernell Roberts Adam Cartwright Actor Eileen Chesis Guest Star Larrian Gillespie Guest Star Robert Strauss Guest Star Victor French Guest Star Ken Mayer Guest Star Chubby Johnson Guest Star Craig Curtis Guest Star Tom Greenway Guest Star William Henry Guest Star James W. Lane Executive Producer David Dortort Producer Dick Nelson Writer Christian Nyby Director