Of the seven dwarven brothers, Prof is the most intelligent and the only one who wears glasses. He stands out as the leader of the band, an idea that does not please Grincheux. One of the traits of Prof's personalities is that he stammers when he speaks, which has the gift of annoying his brother even more. And did you notice that our dear leader is rather insane? Remember, he did not hesitate to send Simplet to see if a monster is hiding in the bedroom, much to his brother's regret.