Elisabeth Singleton Moss(born July 24, 1982)is an American actor, known for her roles as Peggy Olson, secretary-turned-copywriter on the AMC series, Mad Men (2007–present); Zoey Bartlet, the youngest daughter of President Josiah Bartlet, on the NBC television series The West Wing (1999–2006); and Robin Griffin in the miniseries Top of the Lake (2013), the last of which won her a Golden Globe and Satellite Awards for Best Actress in a Miniseries and/or TV film.