Superhero Actors Who Played Hero in Real Life

The video of Robert Downey Jr. helping deliver a bionic arm to a 7-year-old boy born with an only partially developed right limb has gone viral, and for good reason: There's nothing like seeing Iron Man, or any movie or TV superhero, play a superhero in real life. Check out some other do-gooders who've jumped off the screen, and gone into action. -By Joal Ryan