American actress Marcia Wallace, best known as the voice of cynical schoolteacher Edna Krabappel on the television cartoon The Simpsons, has died at age 70.
No cause of death was announced.
Wallace's portrayal of the wisecracking but lonely teacher won her an Emmy award and fans in more than 100 countries where The Simpsons is a TV favorite.
Wallace's other signature role is the sarcastic receptionist to an office of insecure doctors on TV's Bob Newhart Show in the 1970s.
Wallace was also a regular on game shows and the stage, and chronicled her battles against breast cancer and other tragedies in a 2004 autobiography.