Maggie Siff

Maggie Siff is an American actress, born on June 21, 1974. She is best known for her roles in various television series. She portrayed department store heiress Rachel Menken Katz on the AMC drama Mad Men, Dr. Tara Knowles on the FX drama Sons of Anarchy, and psychiatrist Wendy Rhoades on the Showtime series Billions. Siff has also appeared in films such as Push (2009) and Leaves of Grass (2010). Additionally, she starred in the indie film A Woman, a Part (2016) and had a minor role in One Percent More Humid (2017). Siff is an alumna of The Bronx High School of Science and Bryn Mawr College, where she majored in English before completing an M.F.A. in acting at New York University's Tisch School of the Arts.