It's unknown just who Brewster is playing. However, she appeared to be dressed in a well-tailored skirt suit in the picture, so maybe she is guest-starring as a teacher? Or a lawyer from Jeff's past? Brewster joins previously announced guest stars Nathan Fillion and Walton Goggins.
After her breakthrough role on Friends, Brewster logged in seven seasons playing Prentiss on Criminal Minds before leaving in 2012. When speaking with TVGuide.com last year, Brewster expressed her interest in returning to comedy. "Honestly, I think I'm better at it," Brewster said at the time. "I think I'm a goofier person rather than a serious, dramatic actress so I probably belong in comedy."
Are you excited to see Brewster's Greendale debut?