Maggie Siff

Maggie Siff (born June 21, 1974) is an American actress. Her most notable television roles have included department store heiress Rachel Menken Katz on the AMC drama Mad Men, Dr. Tara Knowles on the FX drama Sons of Anarchy for which she was twice nominated for the Critics' Choice Television Award for Best Supporting Actress in a Drama Series, and psychiatrist Wendy Rhoades on the Showtime series Billions. She has also had roles in the films Push (2009) as Teresa Stowe, and Leaves of Grass (2010) as Rabbi Renannah Zimmerman. She starred in indie film A Woman, a Part (2016) and had a minor role in the drama film One Percent More Humid (2017). She is the television spokesperson for the robo-advisor service Betterment. Early life and education Siff is an alumna of The Bronx High School of Science and of Bryn Mawr College, where she majored in English and graduated in 1996. She later completed an M.F.A. in acting at New York University's Tisch School of the Arts. Shortly after graduating, Siff also worked as a temp at a hedge fund, an experience she drew on for her role in Billions. Siff worked extensively in regional theater before acting in television. She won a Barrymore Award for Excellence in Theater in 1998 for her work in Henrik Ibsen's Ghosts at Lantern Theater Company.