Maggie Siff
American actress
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 the independent 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.
This brief starts where responsible research should: with the source description of “Maggie Siff” as american actress. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the people & ideas register because the source frames it as american actress. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Apr 30, 2026. The linked authority identifier is Q242208. VIAF identifies the subject as 227149106239968491958. The Library of Congress control number is no2008135516. 2 of 5 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1974, 2009, 2010 and 2016.
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This entry incorporates text from “Maggie Siff” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.