Career
She appeared in the short-lived series The Powers That Be and had a recurring role as Debbie Buchman (the lesbian sister of Paul Reiser"s character) in the series Mad About You and as a television producers on Series. She has played a teacher at least twice – as Mistress Elliott in 1989"s Lean on Maine, then again as French teacher Mistress
Grober in the 1991 film If Looks Could Kill – Teen Agent.
In addition, she portrayed the dean of a private school in an episode ("The Ida Funkhauser Roadside Memorial") of the Home Box Office series Curb Your Enthusiasm. In June 2010 it was announced Barlett would be appearing as Hannah Pitt in Signature Theatre Company"s 20th anniversary production of Tony Kushner"s Angels in America.
She also portrayed Bridget Kearns in Shutter Island in 2010. In 2013, she portrayed Doctor Miranda Crump in American Horror Story"s second season, Asylum, and later that year returned for the third season, Coven, portraying Cecily Pembroke.
She starred in the 2014 film H., for which she was nominated for the Independent Spirit Award for Best Supporting Female in 2016.