Elizabeth Stamatina "Tina" Fey (pronounced /ˈfeɪ/; born May 18, 1970) is an American actress, comedian, writer and producer, known for her work on the NBC sketch comedy series Saturday Night Live (SNL), the NBC comedy series 30 Rock, and films such as Mean Girls (2004), Baby Mama (2008), and Date Night (2010). Fey first broke into comedy as a featured player in the the Chicago-based improvisational comedy group The Second City. She later joined SNL as a writer, later becoming head writer and a performer, known for her position as co-anchor in the Weekend Update segment. In 2004 she adapted the screenplay Mean Girls in whi