Snowball

Snowball is the (former) main antagonist from The Secret Life of Pets and a major character in the whole franchise. He is a cute white bunny rabbit who used to want to dominate the world because he was turned down by his owner. After a girl named Molly found him, she petted him and used her heartwarming behavior, making him get adopted. Now, he is an ally to Max and his friends. He is a minor character from Magical Girl franchise.