Despite being the ruler of vampires, the Vampire King has an odd, somewhat eccentric and silly demeanor. He is not without a darker side, as he acts considerably ruthless and cruel, showing no remorse for others. In contrast to his evil nature, he's a very calm and reasonable person. He only drinks blood as a means of sustenance (rather than indulgence) and doesn't talk down to his victims. He was apparently a non-sapient lion before turning into a vampire.