Megan Fox
Before she starred in Transformers and Confessions of a Teenage Drama Queen, she was cheering for Morningside Academy in Port St. Lucie, Florida. She was actually bullied in high school and used the sport as a way to deal with her stress. Later, she overtook Hollywood as a go-to mean girl character and even played a few head cheerleader roles.
Paul Rudd
Paul Rudd was the same heartthrob in high school as he is in Hollywood. Before starring in Clueless, he was one of Overland Park High's "yell leaders." He was a go-to hype man, and even knew how to flip, cartwheel, tumble, and lift. Do you think he does all his own stunts today?