Original Appearances: The Jetsons television series.
Other Appearances: Pretty much all other Jetsons items, as well as headlining the show Astro and the Space Mutts.
Biography: Astro was a stray, found by Elroy Jetson in the episode “The Coming of Astro.” George resists keeping the dog, saying an apartment is no place for a dog, and offering a robot dog as an alternative. When a cat burglar tries to rob the Jetsons, while the robot dog goes after the burglar, it's actually Astro who (accidentally) catches the criminal, causing George to change his mind. In the episode “Millionaire Astro,” it's learned that he's really the long-lost dog of zillionaire J.P. Gottrockets, and the Jetsons return Astro home. Gottrockets realizes that Astro's unhappy with him and returns him. I don't know how Astro went from being the Jetsons' pet to being a galactic police dog in Astro and the Space Mutts, and honestly, I don't really want to find out!
Powers: Astro was capable of speech, with R's being inserted in place of many consonants, much like Scooby-Doo's speech. Astro also appears to have opposable thumbs on his front paws when needed.
Group Affiliation: The Jetsons family.
Miscellaneous: Some Hanna-Barbera fans believe that Astro could well be a descendant of Scooby-Doo.