At first glance, Thrax appears to be collected, sophisticated, charismatic and polite, but he’s actually a cruel, heartless, sadistic and horrendous villain. As a serial killer, he lives for turning every person in the world into a zombie, which he regards as a challenge. He does this because he is angry at the scientists who made him a cannibalistic zombie. He was the first ever zombie and created all the rest. He can control them through mind control only he possesses. He is stubborn.