Dumb Vinci/The Antagonist is a goon who worked for Dr. Jigsaw and currently for Simon. He lost his hand in the first book and has a hook to replace it. He had to give up piano because of this. He is just called a goon in the second book from the prologue to the point to where he is electrocuted trying to kill Duncan. During the third book, he is sprayed with poison in the face by a giant grasshopper, severely damaging his face. At the end of the third book, he dons Simon's skull mask and takes on his own villain identity as The Antagonist.