Maggie Siff is an American actress best known for her television roles, notably department-store heiress Rachel Menken Katz on Mad Men and prodigal girlfriend Dr. Tara Knowles on Sons of Anarchy.
Maggie appeared opposite Edward Norton in Tim Blake Nelson's feature film Leaves of Grass. She also appeared in three episodes of Life on Mars playing Harvey Keitel's character's daughter. Siff can also be seen in Judd Apatow's Funny People opposite Adam Sandler.
Siff was a series regular on the first season of Mad Men. She also appeared in a recurring role on nip/tuck, and in guest star roles on Grey's Anatomy and Law & Order.
In 2009 Siff appeared in her first film role, Paul McGuigan's Push with Djimon Hounsou, Chris Evans and Dakota Fanning.
Off Broadway, Maggie has appeared in Richard Nelson's Frank's Home (Playwrights Horizons) and Ruby Sunrise (Public Theater - New York Shakespeare Festival). Siff received a Jefferson Award nomination for her performance in Dollhouse at the Goodman Theatre in Chicago.
Siff has also worked frequently in Philadelphia, where she won the Barrymore Award for Ghosts.
She graduated with an M.F.A. from NYU's Tisch School and a B.A. from Bryn Mawr.