Tanner Boyle is a foulmouthed short-tempered shortstop with a Napoleon complex. After suffering a horrible loss on their first game, he picks a fight with the entire seventh grade from his school (and loses). He tends to curse more than the others, and often insults and bullies Timmy .
- He wears number 12.
- He is the main protagonist of the episode ¨Tanner´s Bird ¨.