Don’t recognize today’s Celebrity Birthday boy? You’d recognize him if you heard him! Kevin Clash is a voice actor and puppeteer most famous for providing the voice of the Sesame Street character Elmo! You’d never guess it to look at him, would you? In addition to Elmo, Clash has voiced characters in movies such as Muppet Treasure Island, Muppets From Space, Labyrinth, Follow That Bird, and he even did the voice of Splinter in the first two live-action Teenage Mutant Ninja Turtles movies! This year marks Clash’s 30th year as a voice actor and puppeteer, and he shows no signs of slowing down, as he currently serves as co-executive producer of Sesame Street! Clash turns 51 today.