Don Messick

Donald Earl "Don" Messick (September 7, 1926 – October 24, 1997) was an American actor. He was the voice of Scooby-Doo in "Scooby-Doo", Bam Bam Rubble in "The Flintstones", Astro the Dog in "The Jetsons", Muttley the Dog in "Wacky Races", Papa Smurf in "The Smurfs", and as Dr. Quest in "Johnny Quest".
Messick was born on September 7, 1926 in Buffalo, New York. He was married to Helen Marie McHugh from 1949 until his death in 1997. Messick died on October 24, 1997 from a stroke in Salinas, California, aged 71.