<Table> <Tr> <Td> </Td> <Td> This section relies too much on references to primary sources . Please improve this section by adding secondary or tertiary sources . (December 2007) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section relies too much on references to primary sources . Please improve this section by adding secondary or tertiary sources . (December 2007) (Learn how and when to remove this template message) </Td> </Tr> <P> Astro is a canine character on the Hanna - Barbera cartoon, The Jetsons . He was designed by Iwao Takamoto, and originally voiced by Don Messick . Despite the stress he tends to cause him, George often regards Astro as his genuine best friend . Astro, despite being clumsy and dim - witted, was very loyal (to a fault) to the Jetsons, particularly George and Elroy . He was more advanced than present - day dogs, in that he had a rudimentary grasp of the English language . In a recurring gag, while George is walking Astro on a gravity - suspended treadmill, Astro begins chasing a cat that stumbles onto it, eventually forcing it to go at speeds too fast for George to keep up with, trapping him . This led to George's trademark phrase "Jane! Stop this crazy thing!". </P> <P> Don Messick would usually give Astro a speech pattern involving replacing the first letter of any word with an R, such as "I love you, George" becoming "I ruv roo, Reorge". This is similar to Scooby - Doo in the cartoon Scooby - Doo, Where Are You!; which was also voiced by Messick (of the two voices, Astro's was slightly higher and raspier than Scooby's). In the Harvey Birdman, Attorney at Law episode "Back to the Present", Astro was voiced by Wally Wingert, while in The Jetsons & WWE: Robo - WrestleMania!, he's voiced by Frank Welker . </P>

What was the dog's name on the jetsons