Marcia Wallace, The Simpsons Voice of Edna Krabappel, Dead at 70

Marcia Wallace, best known for being the voice of Edna Krabappel on The Simpsons, died at the age of 70 in Los Angeles Friday, Oct. 25 Credit: Valerie Macon/Getty Images

Marcia Wallace has died at the age of 70. The actress died Friday night, Oct. 25, in Los Angeles, TMZ reports. According to the site, she had been sick for the past several months, and passed away at her home with her family by her side. 

The Emmy awarding-winner actress first broke out in Hollywood in TV with guest roles in Bewitched, The Brady Bunch and The Bob Newhart Show. She also was featured in Murphy Brown, 7th Heaven and The Young and the Restless. Her film credits include My Mother the Werewolf and Teen Witch.

Wallace was best known as the voice of Edna Krabappel on The Simpsons for the past 23 years from 1990 to 2013. She also spent three decades on various TV game shows in the 70's, including Hollywood Squares, Match Game and The $25,000 Pyramid.

Wallace was diagnosed with breast cancer in 1985 and became a high-profile advocate for breast cancer awareness. She became a motivational speaker, and traveled across the country to discuss her personal story.