Chaud is usually serious and speaks realistically. He chooses not to have friends, because he enjoys his solitude. If presented with a task, he will handle it with great determination. However, in MegaMan NT Warrior Axess, he sees Lan as a good partner and friend and begins to open up. In the manga, he's less serious, easily getting emotional. This is usually shown when someone mocks him either directly or indirectly and ends up with him wreaking out his frustration on the person, particularly Sean and Lan, both of which are shown in a humorous manner.