Since Cozy debuted and her revelation as a villain, I always wondered if she was an adult in a kid's body this entire time, similar to Baby Doll, the villain from Batman: The Animated Series that's she's based on. It will explain her behavior throughout the series and why she is so cunning and evil! But other than that, it's a theory that I had for a while. She could be a very smart villainous child as presented in the show. But I always think there is more to Cozy than meets the eye. ;)