The last character I'm going to come up with for the comic.
His name is Colton. He's a GUINEA-PIG - also known as a 'cavy'. I think he's awesome.
He's ace with money and betting; he considers Tumble Drier to be a lucky charm, so if he can get her to come along to a game of cards, he usually wins. He's smart, and he's a good scammer. He wants to get rich, but he's insanely paranoid and pacifists freak him out.
Competition, no matter how small, always gets his blood rushing. He will freaking kill you if you win at Scrabble.
Unfortunately, he is a guinea-pig. On the other hand, he's got an empowering personality. It's like an aura that makes people submit to him.
The dragon is most vulnerable to this, the Imp is only occasionally taken in, and the pony is completely immune... she's the one who stops him from doing anything too dangerous for the entire world.
Like I said, his goal in life is to become a millionaire.
So yeah. I like this guy.
His design will likely stay this way, he WILL stay a guinea-pig, and his personality is definitely not going to change.