Shelley Lee Long (born August 23, 1949) is an American actress and comedian. Long is known for playing Diane Chambers on the sitcom "Cheers", for which she received five Emmy nominations, winning in 1983 for Outstanding Lead Actress in a Comedy Series. She won two Golden Globe Awards for the role. Long reprised her role as Diane Chambers in three episodes of the spin-off "Frasier", for which she received an additional guest star Emmy nomination. In 2009, she began playing a recurring role as DeDe Pritchett on the ABC comedy series "Modern Family".