Remember the high school boys of The O.C., Adam Brody and Benjamin McKenzie? Well, they definitely weren't going through puberty as the series was being filmed. It makes sense why so many actors looked so put-together during their 'teen' years! Find out which celebs fooled us in the video above!

IN CASE YOU MISSED IT: Celebrities who can't drive a car

These actors portrayed teenagers when they weren't actually teens!