This 36-Year-Old Actor Starred as a High School Jock on a Popular ‘90s Sitcom, But Who Is He?

How well do you remember ‘90s TV? This actor, seen here in June 2012, is staying busy in Hollywood, but he’s best known as one of the central characters in a long-running, Chicago-based sitcom. Who is he? Make your best guess, and then click through for the reveal!