Elizabeth Stamatina "Tina" Fey is an American actress, comedian, writer, producer, and playwright. She is best known for her work on the NBC sketch comedy series Saturday Night Live and for creating the comedy series 30 Rock and Unbreakable Kimmy Schmidt. Fey is also known for her work in film, including Mean Girls, Baby Mama, Date Night, Megamind, Muppets Most Wanted, Sisters, Whiskey Tango Foxtrot, Wine Country, and Soul. Fey broke into comedy as a featured player in the Chicago-based improvisational comedy group The Second City. She joined Saturday Night Live as a writer, later becoming head writer and a performer, appearing as co-anchor in the Weekend Update segment and, later, developing a satirical portrayal of 2008 Republican vice presidential candidate Sarah Palin in subsequent guest appearances. In 2004, she co-starred in and wrote the screenplay for Mean Girls, which was adapted from the 2002 self-help book Queen Bees and Wannabes.