Cat is the older of the two brothers. He enjoys fame, fortune and whitefish chub. Just like his fellow felines, he hates water and always gets hurt when Dog drags him into dangerous situations.
Dog is younger than Cat. He loves chasing garbage trucks, burying bones, and eating sloppy food. He is a carefree canine.
Despite their differences, these brothers are very close friends and wouldn't give each other up for anything else.
Cat is voiced by Jim Cummings, also known for Winnie the Pooh, Tigger, and others. Dog is voiced by Tom Kenny, also Known for SpongeBob SquarePants and others.
- Cat and Dog will both meet Winnie the Pooh and his friends in Winnie the Pooh Meets CatDog (TV Series) and see them again in Pooh's Adventures of CatDog and the Great Parent Mystery.
- They are members of the DinoAdventure Squad. They use Haos and Aquos Bakugan, respectively. Cat's Bakugan are Siege, Laserman, and Serpenoid, while Dog has a Limulus, Juggernoid, and Stinglash.