10 Celebrities With Shocking Pasts

10. Jon Hamm

Jon Hamm is an actor best known for his role as Don Draper in Mad Men, a show that relates the lives of ad men and women in the 1960s. Before he became an actor, Hamm was a student at the University of Texas and was a member of the Sigma Nu fraternity. It was there that Hamm did some very questionable things that never get talked about.
10. Jon Hamm