| Shelbyville Martin|
|First Appearance||"Lemon of Troy"|
|Voiced By||Dan Castellaneta|
He is like his Springfield counterpart, Martin Prince, in many ways. His haircut is similar to Martin's and they both wear the same T-shirt and shorts. However, the Shelbyvillian Martin is bigger, fatter and also seems to be less intelligent than Martin.
Bart met him and Shelbyville Nelson when he was pretending to be one of Shelbyville kids. Bart told them he didn't go to school. They weren't sure about his story, but when Bart incorrectly calculated two plus two, they believed him.