Thats

The Dragon Knight of Earth, a human. He was originally a thief before he awoke the Earth Dragon while trying to steal its seal from the Dragon palace. He still has a weakness for treasure and food. He uses the Earth Dragon sword as his weapon and, unlike the other two Knights, has no extra powers. Thatz, while coming off lighthearted, lazy, and even immature at times, cares deeply for Rath and Rune and tries hard to keep them both from harm-- both external and self-inflicted. (Source: Wikipadia)