In 1997, she played office assistant Elaine Vassal on the television series "Ally McBeal" for five seasons until 2002; her role earned her a Golden Globe Award nomination for Best Supporting Actress in 1999. In 2003, Krakowski guest-starred in the TV drama "Everwood" as psychologist Dr Gretchen Trott, a love interest for Treat Williams' Dr Andrew Brown. In 2003, she guest starred on "" as Emma Spevak, a serial killer of elderly women. In 2006, Krakowski was cast in the NBC sitcom "30 Rock", where she plays Jenna Maroney, a cast member of the fictional late night sketch show "TGS with Tracy Jordan". In 2009, 2010 and 2011, she received Emmy nominations for her role in "30 Rock".