Movie fans know O'Hanlon best as the star of Warner Bros. ' live-action `` Joe McDoakes '' short subjects from 1942 to 1956 . Television viewers recognize him as the voice of George Jetson in Hanna-Barbera 's 1962 prime-time animated television series `` The Jetsons '' and its 1985 revival .
He was known for his roles in the Warner Bros. ' live-action `` Joe McDoakes '' short subjects from 1942 to 1956 and as the voice of George Jetson in Hanna-Barbera 's 1962 prime-time animated television series `` The Jetsons '' and its 1985 revival .