We Bet You Can't Guess Who This Former Late '80s Lovable TV Nerd Is... (PHOTOS)

This might be our toughest "Guess Who" yet! Do you recognize this former late-'80s TV icon? He played a bespectacled, lovable sidekick with a penchant for ugly button-down shirts. Here's one more hint (which may give it away!): In the late '90s there were rumors swirling that this actor grew up to be a well-known shock rocker, but as you can see, those rumors are not true. So, you tell us — who is he?

Give up? Click to the next slide for the answer!