Edna Krabappel is one of the most favourite characters in the simpsons. Voiced by the always smiling Marcia Wallace, Mrs. K is one of the few characters on the show to have a dubber of its own.

On October 25, 2013, Wallace passed away at the age of 70 after a long fought battle with cancer. The creators of The Simpsons announced that her character would be retired as Wallace was irreplaceable.

Wallace had recorded lines for several upcoming episodes, and her final episode will air in late season 25 or early season 26.