Lord Raptor is a character from the Darkstalkers universe.
In his final live performance, he ended up killing himself and 100 others in a mysterious event that is still unknown. It was eventually found out that Lord Raptor had a book written in ancient Hebrew that had connection to another world called Makai. The final song, which was called "Sacrifices," contained a curse, which explains somewhat the reasoning behind the events of his final concert.
He was noticed by Emperor Ozomu and resurrected as a zombie. He was promised more power, should he defeat the Darkstalkers, but Lord Raptor planned on defeating Ozomu and becoming Emperor himself. He arrived at Ozomu's castle, only to find it had disappeared and the entrance to the Majigen in its place. Lord Raptor now put into plan to destroy the creator of this and take his place.