Tom Lucitor

A demon and also a prince of the underworld.
Tom is very hot-tempered and can quickly lose control at the slightest provocation. When angry, Tom's eyes glow bright red, and he can speak in a low, shrill, demonic voice. However, when Tom hired Brian, he demonstrated that he can control his temper when he wants to.

When he's not angry, Tom can be quite easygoing. He often helped Star and Marco, too, and if he likes someone, he'll try to earn their favor.
He is terribly possessive and very jealous, if someone gives him a reason to be jealous, he can flare up so much that all hell will be in fear.