Zosia Mamet is an American actress. While she began acting in the 1990s, it was in the 2010s that her career flourished. During this period, she played recurring characters on TV, such as the part of Courtney in United States of Tara, Kelsey in Parenthood, and Joyce Ramsay in Mad Men. She also appeared in the films The Kids Are All Right and Cherry. Mamet came to prominence after she got the role of Shoshanna Shapiro in the television series Girls. While on the show, she starred in the movies Rhymes with Banana, The Last Keepers, Bleeding Heart, Wiener-Dog, and Dominion. She next had performances in the films The Boy Downstairs and Under the Silver Lake. In 2020, she starred as Annie Mouradian in the HBO Max The Flight Attendant.