Part of the fun of Game of Thrones is the depth of the universe created by George R.R. Martin and HBO. Visit the Viewer’s Guides on HBO’s website and you’ll realize just how much time and effort they’ve put into their creation. There are maps, family trees, family slogans (their “words”, as it were), brief histories of each of the houses, and sigils for each house. A sigil is a sign, or banner, inscribed with magical powers. If you were a sociologist, you might think of these sigils as the power animals for the respective houses of Game of Thrones. As it turns out, the Hanna-Barbera universe also had a lot of powerish animals. And… well, I think you see where this is going.
Unfortunately, Hanna-Barbera didn’t have any animated deer, so House Baratheon didn’t make the cut. The only fish they had were from something called Fish Police that aired for six episodes in 1992 and was clearly not the same animated style.