He's very dominant and possessive. He was gentle and calm yet little bit eerie who spending time with his friends and even using a Poppy gas for make them sleeps quietly but in reality, his smoke which cause people having terrifying and often violent nightmares before they are experimented by the Scientists. As present day, CatNap was a very ruthless, cunning, violent and bloodthirsty animal like a killer who punished or murdered anyone.