The Bob Newhart Show

Actress Marcia Wallace, the voice behind the scoffing schoolteacher Edna Krabappel on the hit TV series The Simpsons, has died. She was 70.

Marcia Wallace, the voice Edna Krabappel -- Bart Simpson's jaded, chain-smoking school teacher on the animated show "The Simpsons" -- has died, the show producers said Saturday.

Actress Marcia Wallace, the voice behind the scoffing schoolteacher Edna Krabappel on the hit TV series The Simpsons, has died. She was 70.

Marcia Wallace, the voice Edna Krabappel -- Bart Simpson's jaded, chain-smoking school teacher on the animated show "The Simpsons" -- has died, the show producers said Saturday.