Is there anyone more reviled in theater than the understudy? Whether it be Nathan Lane in anything, or the star of Carrie: The Musical (provided there had been enough performances for her to miss one), the absence of the lead sends audiences into full-fledged rages, as they demand ticket exchanges or pout through comparable (and often better) performances. Here's hoping none of the leads takes a day off from Theresa Rebeck's new comedy about the lowly profession, The Understudy: They are the Tony-winning Julie White, Weeds's Justin Kirk, and Saved by the Bell's own Zack Morris (a/k/a Mark-Paul Gosselaar).
Tuesdays-Saturdays, 7:30 p.m.; Wednesdays, Saturdays, Sundays, 2 p.m. Starts: Oct. 9. Continues through Jan. 17, 2009