#7 Shelton Benjamin and Brock Lesnar
Brock Lesnar is one of the most intimidating stars that WWE has on their roster at the moment, so it's hard to imagine him ever attending college and sharing a dorm with another person, but it seems that this is exactly what he did.
The best part of the story is the fact that Brock's roommate went on to become a WWE Superstar himself. Shelton Benjamin helped train Brock when they lived together and it seemed that Brock repaid this by forcing WWE to sign Shelton when he was first poached by the company.
Even though it is well documented that Brock Lesnar doesn't like people, it seems that he and Shelton have remained close friends ever since, with him naming Shelton as the Godfather of his two eldest children.