Megan Mullally (born November 12, 1958) is an American actress and a singer.
Mullally is best known for playing the wealthy, alcoholic socialite, Karen Walker, on the Emmy Award-winning TV sitcom, Will & Grace, from 1998 to 2006. She received 7 consecutive Emmy Award nominations for Outstanding Supporting Actress in a Comedy Series for her role on Will & Grace, winning twice in 2000 and 2006 and giving her more nominations and more wins than any other actor on the show. She also received 7 consecutive Screen Actors Guild Awards nominations for Outstanding Performance by a Female Actor in a Comedy Series, winning 3 times in 2001, 2002, and 2003, and was nominated for 4 Golden Globe awards for the same role.