Conversation so far:
What was Tom Pettys's first acting project?
Tom Petty's first appearance in the film FM.
What year was Tom Petty's acting debut?
Tom Petty's acting debut was in 1978.
What project followed after Tom Petty's acting debut was in 1978?
Tom Petty later had a small part in 1987's Made in Heaven.
Did Tom Petty work on any movies?
Tom Petty appeared in the 1997 film The Postman.
What role did Tom Petty play in the film The Postman?
Tom Petty portrayed the Bridge City Mayor in The Postman, who is implied to be a future history version of himself.
Are there any other interesting aspects about Tom Petty's acting career besides his live action roles?
In 2002, Tom Petty appeared on The Simpsons in the episode How I Spent My Strummer Vacation, along with Mick Jagger, Keith Richards, Lenny Kravitz, Elvis Costello, and Brian Setzer

Question: What character was he on The Simpsons?
Self-contained rewrite: What character was Tom Petty on The Simpsons?