These are aliens. Beverblast is like an enormous bever. He's actually always wild and he always destroys things. He's not a normal bever because he doesn't live by a river and he hates wood. Brainhead is a combination of the Duck character Guus Geluk (Gladstone Gander) and a bat. And an ostrich. He's called Brainhead because he has a little bit of his brain sticking out of his head.
