Marcia Wallace Marcia Wallace

Marcia Wallace, who voiced Edna Krabapple on The Simpsons, has died, TMZreports. She was 70.

Although Wallace's close friend Cathryn Michon told Deadline that Wallace passed away because of complications from breast cancer — which she was diagnosed with in 1985 — her son Mikey told TMZ that her death was due tocomplications from pneumonia.

Remember other celebrities we lost this year

In addition to  The Simpsons, Wallace starred on The Bob Newhart Show

 as the receptionist Carol. Throughout her long career, Wallace also appeared on Full HouseAlfHollywood Squares, The $25,000 Pyramid and, most recently, The Young and the Restless.

Yeardley Smith, who voices Lisa on The Simpsonstweeted about Wallace's passing early Saturday. "Cheers to the hilarious, kind, fab Marcia Wallace, who has taken her leave of us. Heaven is now a much funnier place b/c of you, Marcia," she wrote.

Which Simpsons character will be killed off?

executive producer Al Jean released a statement obtained by Deadlinethat Wallace's death is unrelated to the announcement made earlier this montht hat the series plans to kill off its second regular character next season. "I was tremendously saddened to learn this morning of the passing of the brilliant and gracious Marcia Wallace," Jean said. "She was beloved by all at The Simpsons and we intend to retire her irreplaceable character. Earlier we had discussed a potential storyline in which a character passed away. This was not Marcia's Edna Krabappel. Marcia's passing is unrelated and again, a terrible loss for all who had the pleasure of knowing her." 
Watch this video featuring Edna Krabappel's trademark "Ha!" laugh: