Jon Hamm Guest Starring on ‘The Simpsons’

Jon Hamm (Mad Men) is headed to Springfield. The actor will be voicing a character in an upcoming episode of The Simpsons. In the episode, titled “Donnie Fatso” and slated to air in December, Hamm plays an FBI supervisor whom Homer reports to when he becomes an undercover informant in prison and infiltrates Fat Tony’s inner circle.