Patrick Duffy Directory References Images Discover New Seven Wonders of the World 12 Greek Gods and Goddesses Nostradamus and His Prophecies 11 Banned Books Through Time 12 Novels Considered the “Greatest Book Ever Written” 7 Famous Child Prodigies What’s the Difference Between Bison and Buffalo? Contents Patrick Duffy American actor Learn about this topic in these articles:“Dallas” In Dallas’s youngest brother, Bobby (Patrick Duffy, in a career-defining role), and Pamela Barnes (Victoria Principal), the sister of rival oil tycoon—and J.R.’s chief nemesis—Cliff Barnes (Ken Kercheval).Read More