Zosia Mamet, born February 2, 1988, is an American actress best known for her role as Shoshanna Shapiro on HBO's hit series "Girls." The daughter of playwright David Mamet and actress Lindsay Crouse, she has appeared in numerous films including "The Kids Are All Right," "Greenberg," and "Superbad." She also starred in "The Newsroom" and has established herself as a prominent young talent in Hollywood.