The answer to the Dog breed of Scooby-Doo and Astro from The Jetsons in CodyCross is GREATDANE. CodyCross is an amusing word game. It is a word play game that challenges one's word knowledge in different categories and themes. If this clue had you baffled, you're not alone! Many of the puzzles in CodyCross are pretty tricky, but that's what makes the game so fun.