He's grouchy and yeah... just like me so that's why he's my favorite. *Grins revealing 7 rows of teeth*
I have so many favorites, but the one currently stuck in my head is George, Hermes' snake in "The Sea of Monsters"
Jack Griffin, the Invisible Man from the novel entitled The Invisible Man by H.G Wells. He either wears a whole lot of clothes with lots of bandages around his head so that people can see him, or absolutely nothing so that they can't. He started out as a precocious young scientist looking to make a difference in the world and make a name for himself in the scientific community, but the formula he uses to turn himself invisible makes him absolutely nuts. (Homicidal and prone to violent outbursts)