Actress/writer Allison Williams (HBO’s Girls) is the daughter of NBC Nightly News anchor Brian Williams. In 2004, Allison
appeared in two episodes of TV’s American Dreams, and in 2011, she wrote
and played Kate Middleton for TV’s Will & Kate: Before Happily Ever
Allison's three Girls co-stars, Lena Dunham, Jemima Kirke, and Zosia Mamet, also have nepostistic connections.