Kevin Clash (born September 17, 1960) is a puppeteer and voice actor. Clash currently performs Elmo on Sesame Street. He has also performed Splinter from Teenage Mutant Ninja Turtles, Clifford from Muppets Tonight, and Baby Dinosaur from Dinosaurs. Mr. Clash is an important part of Sesame Street Workshop. He often performs Elmo in hospitals for sick children. Mr. Clash is well known for his ability to improvise.