<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 (voiced by Don Messick in the TV series, Wally Wingert in Harvey Birdman, Attorney at Law, Frank Welker in The Jetsons & WWE: Robo - WrestleMania) 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). </P>

What is the name of the family dog in the science fiction series the jetsons