Spoiler : Born in Buffalo, New York 9/7/1927; died 10/24/1997 following a series of strokes in Salinas, California. Messick began his career as a ventriloquist on radio during the 1940's. Voice of Ruff (cat)) on Ruff and Reddy for NBC-TV (1957-1960). Voice of Boo Boo on the cartoon series Yogi Bear beginning in 1961. Voice of Astro on The Jetsons cartoon for ABC-TV (1962-1963). Voice of Bamm Bamm on The Flintstones cartoon for ABC-TV (1963-1966). Voice of Doctor Benton Quest on Jonny Quest cartoon for ABC-TV (1964-65). Voice of Fumbles on Where's Huddles cartoon for CBS-TV (1970). Wally Wooster on The Duck Factory for NBC-TV (1984). For many years was "Snap" in the Kellogg's Rice Crispies commercials.