This is Haze. Obviously, he is a cat.

But Haze thinks he's a dog. The only animals he ever saw at his original home were rottweilers, and he just wanted to blend in with the crowd. The home where he lives now has a dog, too.

Haze hates cats. If he sees one, he will attempt to kill it.  He believes that's the duty of a dog.

This causes the dog in his new home, Moxie, much confusion. Moxie doesn't know how to react to a cat that thinks it's a dog licking her face and ears.