Patrick Duffy References Images Patrick Duffy American actor Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of EncyclopĂŠdia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Dallasâs youngest brother, Bobby (Patrick Duffy, in a career-defining role), and Pamela Barnes (Victoria Principal), the sister of rival oil tycoonâand J.R.âs chief nemesisâCliff Barnes (Ken Kercheval). Read Moreâs youngest brother, Bobby (Patrick Duffy, in a career-defining role), and Pamela Barnes (Victoria Principal), the sister of rival oil tycoonâand J.R.âs chief nemesisâCliff Barnes (Ken Kercheval). Read More