Don Messick

Donald Earl "Don" Messick (September 7, 1926 - October 24, 1997) was an American voice actor who was best know for his voice work for Hanna-Barbera. His best-remembered voice roles include Boo Boo Bear and Ranger Smith from ', Bamm-Bamm Rubble from ', Astro from ', Scooby-Doo from ' (as well as his nephew Scrappy in later seasons), and Papa Smurf from .