Zosia Mamet

Where you’ve seen her before: Out of the four female leads, Zosia Mamet’s filmography is undoubtedly the heftiest, with the list including a role in the film The Kids Are All Right and the TV series The United States of Tara and Parenthood. Most memorably, however, Mamet starred as Joyce Ramsay, the assistant photo editor at Life magazine who becomes Peggy’s lesbian wooer in Mad Men.