A main character is to be killed off on \"The Simpsons\" during its current 25th season, said Al Jean, the U.S. animated sitcom\'s executive producer. \"We\'re actually working on a script where a character will pass away,\" Jean told reporters in a conference call last week. \"I\'ll give a clue that the actor playing the character won an Emmy for playing that character, but I won\'t say who it is.\" The Los Angeles Times said the hint doesn\'t give too much away since nearly every member of the core ensemble of voice-over performers has won an Emmy at some point during the course of the show.