Things are going pretty great for Zosia Mamet. Not only is she the star of the hit TV show Girls, but the actress is also celebrating her off-Broadway debut in the wild drama Really Really. Turns out however life is hard, even for Zosia! The young actress sat down with David Letterman on February 20 to discuss the double-edged sword of having famous playwright David Mamet as a father and the ridiculous way she learned her Girls character might get killed off the series! Watch your back, Shoshanna! Check out the interview below, and don’t miss seeing her live on stage in Really Really, running now through March 24.