"Originally a man of low birth but peerless ambition, Dio is a villain of little conscience, vast cunning, and an insatiable hunger for power. Becoming a Vampire and later a Stand user, Dio Brando has gathered around him many minions and is responsible for many major events of the series, such as the death of Jonathan Joestar and the Joestar Family's acquisition of Stand power. Thus, he is a dominant character whose legacy persists throughout the series."- Jojo wiki