Corey Feldman is an American actor, former child actor, and singer. His most famous roles include Clark "Mouth" Devereaux in The Goonies, Teddy Duchamp in Stand By Me, and Tommy Jarvis in Friday the 13th: The Final Chapter. He also voiced Donatello in the first and third live action TMNT movies. Feldman is also the lead singer for the rock band Truth Movement. He voices Slash for TMNT.