Brewster also regularly appears on Will You Accept This Rose, a Nerdist podcast hosted by Arden Myrin about The Bachelor franchise.On the March 30, 2006 episode of Late Night with Conan O'Brien, Brewster revealed that she had received a handwritten note indicating Hugh Hefner would like her to pose for Playboy.In 2005, she began voice work as Judy Sebben/Birdgirl, a recurring character on the animated series Harvey Birdman, Attorney at Law (and later played a similar guest character on American Dad! Brewster had a long run with the show Criminal Minds, playing multilingual Supervisory Special Agent Emily Prentiss until the show's sixth season, when she and A. Cook were released from their contracts by CBS in a cost-cutting move.Owing to complaints from fans, both she and Cook were rehired and kept for the following season.
Brewster was born on March 10, 1969, in Concord, Massachusetts.
She appeared in Andy Richter Controls the Universe and Huff. Indestructible, the female lead in James Gunn's low-budget superhero comedy The Specials (2000).
She played Amy Pierson, a calculus teacher afraid of the water, in the independent film The Big Bad Swim, which premiered at the 2006 Tribeca Film Festival.
In February 2012, Brewster announced via Deadline that she was leaving Criminal Minds at the end of the season to pursue a possible career in comedy television.
Brewster subsequently portrayed bureau chief ADA Paula Foster in the Public Integrity Unit of the District Attorney's office on NBC's long-running police drama Law & Order: Special Victims Unit.