Lorne Greene Ben Cartwright Actor Michael Landon Little Joe Cartwright Actor Dan Blocker Eric "Hoss" Cartwright Actor Pernell Roberts Adam Cartwright Actor Jackie Russell Jennifer Beale Guest Star Gerald Mohr Phil Reed Guest Star Barbara Lawrence Della Thompson Guest Star Theodore Marcuse Roudin the Great Mystic Guest Star Laurie Mitchell Harriet Guest Star Jerry Oddo Gerner Guest Star Stafford Repp Sheriff Brady Guest Star Robert "Big Buck" Maffei Hercules Guest Star Bob Hopkins Carnival Announcer Guest Star Mary Orozco Daisy the Fat Lady Guest Star James W. Lane Executive Producer David Dortort Producer Herman Groves Writer Charles Haas Director