Simon Graham

Simon is one of Bowser Jr, Rafael and Gavin's best friends, he is a very intelligent Shy Guy and can make very good working mechanics, potions and other scientific-type things, unless he gets the blueprints mixed up or the substances wrong.

Simon didn't use to have any friends as people thought he was a very nerdy and weird type of guy until Bowser Jr came along, Rafael hated him at first but then Junior taught him that bullying isn't right and he should become friends with Simon. Simon is also featured in Bowser Junior's Powertime and Super Bell Juniorschool.