Dio is an immortal vampire and the arch rival of the Joestar clan.
Series 1: Phantom Blood
Dio is the son of Dario Brando, an alcoholic and abusive father. Back when Dio was just a boy, he was brought into the household of George Joestar after the mysterious death of his father, so as to repay the debt he owed Dio's father for saving his life. But soon Dio's personality caused trouble for George's young son, Jonathan Joestar. Even more of a sociopath than his father, Dio was resolute to shatter Jonathan's spirit and take his place as the favored son, even going so far as to arrange for Jonathan's dog Danny to be burned to death. Initially, Dio is able earn the trust of the patriarch of the Joestar family through deceit (and at Jonathan's expense). However, his plans of taking over the Joestar household were discovered by Jonathan when he discovered that not only had Dio poisoned his biological father to death, he was doing the same to his adoptive father, all to take the Joestar estate for his own.
Determined not to be stopped, and understanding the potential to enjoy power over all things instead of just the Joestar estate, Dio wears and activates the Stone Mask, becoming a nearly unstoppable vampire. His gains supernatural abilities such as being able to walk on walls, and regenerating his body faster than fire can consume it. He is able to create two fluid jets from his eyes powerful enough to slice stone and kill living things. He is also able to vaporize his body fluid rapidly enough to freeze anything he touches. However, this is at the expense of having his body be sustained by sheer willpower alone, rather than vital energy. A sufficiently powerful vital force--specifically, sunlight or the Hamon force--will negate the sustaining force's presence and disintegrate the long-unliving body. Like all Jojo vampires, Dio sucks blood through tentacles in his fingers and has been seen at least once drinking blood from an unnamed girl.
