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Marcia Wallace, voice of 'Simpsons' Edna Krabappel, dies at 70

(Left) Actress Marcia Wallace poses on the press line at the TV Land 35th anniversary celebration of the Bob Newhart Show in Beverly Hills, Calif. on Wednesday, Sept. 5, 2007. (Right) The 'Simpsons' character Edna Krabappel, appears in a photo from the animated show's Facebook page. (AP: Dan Steinberg / www.facebook.com/thesimpsons)

October 26, 2013 12:00:00 AM PDT
Marcia Wallace, the voice behind "The Simpsons" character Edna Krabappel, has died. She was 70.

Wallace's agent confirmed the news Saturday to Eyewitness News but would not comment further on the cause of death or give any other details.

Wallace was best known for her work on the long-running FOX animated show as Bart Simpson's crabby teacher at Springfield Elementary. She was also a regular on the 1970s comedy sitcom, "The Bob Newhart Show." She played Carol Kester, the lovelorn and wise-cracking receptionist.

Wallace also made appearances on Candice Bergen's "Murphy Brown."

"Simpsons" executive producer Al Jean said in a statement Saturday that her death is a terrible loss. He says Wallace's "irreplaceable character" would be retired from the show.

The Associated Press contributed to this report.