Dracula

Dracula is the main antagonist in the Castlevania series. He is powerful vampire that reawakens every so often throughout history to spread darkness, doom, and destruction. He is constant rival to the Belmont clan, though other heroes and groups outside of the Belmonts have fought against Dracula and have defeated him. Though, even after being defeated, Dracula will likely be resurrected years later someway, somehow, in some shape or form, to create trouble for the human race once again.