Marcia Wallace

Marcia Karen Wallace was an American actress and comedian, primarily known for her roles on sitcoms. She is best known for her role as receptionist Carol Kester on The Bob Newhart Show (1972–1978) and as the voice of elementary school teacher Edna Krabappel on the animated series The Simpsons, for which she won a Primetime Emmy Award for Outstanding Voice-Over Performance in 1992. The character was retired after her death but sporadically appears through archive recording.