Jane Krakowski was among the supporting cast members of the TV series 30 Rock.
30 Rock is an American satirical television sitcom created by Tina Fey that ran on NBC from October 11 , 2006 , to January 31 , 2013 . The series stars Fey with a supporting cast that includes Alec Baldwin , Tracy Morgan , Jane Krakowski , Jack McBrayer , Scott Adsit , Judah Friedlander , Katrina Bowden , Keith Powell , Lonny Ross , John Lutz , Sue Galloway , Kevin Brown , Grizz Chapman , Maulik Pancholy , and Rachel Dratch . Jane Krakowski . She is best known for her role as Jenna Maroney in the NBC sitcom 30 Rock , for which she received four Primetime Emmy Award nominations for Outstanding Supporting Actress in a Comedy Series .