The elderly Simpsons’ neighbor and church organist was killed by a rogue mechanical seal in Season 23. However, she popped up in the background of subsequent episodes, later to be killed off again, 14 ...
"The Simpsons" said goodbye to one of their longest-running recurring characters during the seventh episode of season 37.
The latest episode of "The Simpsons" killed off a long-running character introduced to the show more than 30 years ago.