Celebrity update?
Meh. There are still way too many actual Simpsons characters yet to be added to start digging into the Celebrity cameo pile.
Forum Discussion
I've no interest in celebs, especially real ones. McClure would be great though. Maybe a Hollywood themed event, plenty of film crews have come to Springfield over the years. That way you can bring in more characters without resorting to casting cameos. In my mind, the best guest stars were the ones playing a character, like Steve Martin's Comptroller or Albert Brooks as Russ Cargill.
