who played jack's mom on 30 rock
Elaine Stritch After returning to the United States, she appeared on The Edge of Night as vinegary nanny Mrs. DeGroot, then was cast as a regular on the short-lived The Ellen Burstyn Show in 1986. She appeared as the stern schoolteacher Mrs. McGee on three episodes of The Cosby Show (1989â€“90). She had a recurring role in Law & Order (1992, 1997) as Lanie Stieglitz.[24] On April 26, 2007, she began guest appearances on the NBC sitcom 30 Rock as Colleen, the fearsome mother of Alec Baldwin's lead character, Jack Donaghy.[25] Her later roles included Judge Grace Lema on Oz (1998); and Martha Albright (mother of Jane Curtin's character) on two episodes of 3rd Rock From the Sun (1997, 2001), alongside her Broadway co-star George Grizzard, who played George Albright.