He appears self-conscious about being overweight as he gets offended when others make fun of it. Balthazor is shown to have an evil side too, as he almost drowned Tina's father Zebulon when he insulted his father and tried to get him fired. He is constantly trying to either get promoted or demoted at work in order to get closer to the drill, the target of which he was sent to destroy.
He almost faced punishment from Satan because of that.
He has a vast knowledge of human behavior from watching much human television in Hell. He is a bit naive but is a very kind-hearted demon. Balthazor Hellman (voiced by Will Sasso) – The family's patriarch.They also realize that the humans can be as bad as the demons, and that Earth is almost no different from hell. The Hellmans face a culture shock trying to fit in with humans. A family of demons from Hell called the Hellmans are sent by Satan to Texas on a mission to destroy a drill that can dig to the Earth's core where Satan fears that the humans will invade Hell if the drill reaches it.
