Zosia Mamet was born on February 2, 1988 in Randolph, Vermont. Her father was playwright David Mamet and mother actress Lindsay Crouse. She also has a sister named Willa, who works as a photographer, and two half-siblings, Clara and Noah. Zosia pursued acting after graduating high school. She has appeared in Spartan, Greenberg, and The Kids Are All Right in film, and on television she has made appearances on The Unit, Parenthood, United States of Tara and Mad Men. She is playing Shoshanna in the hit HBO show Girls for 2 years now.