“Every cast member is an heiress. Williams, who plays the uptight Marnie, is the daughter of NBC News anchor Brian Williams. Jemima Kirke is the daughter of Bad Company drummer Simon Kirke. The parents of Zosia Mamet, the virginal college student Shoshanna, are playwright David Mamet and actress Lindsay Crouse. And Dunham, as Hannah, is the child of artist and photographer Laurie Simmons and painter Carroll Dunham.”