I suppose it wouldn't be a proper group of superheroes without an animal hybrid. Usually it ends up being some scantily-clad chick that happens to be covered in fur, and has a tail and pointy ears. I thought it would be funny for CatGirl to actually have the face of a cat.
She's a pretty minor character, at least for now. I've exhausted my "main characters" as far as the Walters Files are concerned. Still, maybe she'll become a little more prominent as Richie / Speed Demon pursues a highly-comical romantic interest with her.