Most of the "30 Rock" stars have plenty of stage experience to help them get over any jitters. Headliner and creator Tina Fey is a Second City and "SNL" alum, and Alec Baldwin and Jane Krakowski have played Broadway and other stages a time or two, to Tony-nominated and Tony-winning effect, respectively. Tracy Morgan also appeared on "SNL" and is a stand-up regular, and Jack McBrayer is another Second City alum.
The fifth season of "30 Rock," which follows the backstage chaos behind a fictional sketch comedy show, will air Thursdays at 8:30 PM ET on NBC.
— Thomas Peter