This week, it was revealed that Chandler Riggs, the 14-year-old boy who stars on "The Walking Dead" as Carl, has an unexpected stunt double: Emily Brobst, a 29-year-old woman. (Riggs also has another stunt double on the show as well.) What made the news strange -- beyond the obvious -- was the accompanying photo, a perfect visual representation of seeing double. Which makes sense, of course, because that's the magic of stunt doubles. They look just enough like their famous counterparts to fool audiences. Ahead, 14 amazing photos of celebs and their acrobatic doubles.