Dr. X (GodzillaVerse)

Dr. X is one of the main antagonists of the Monster Kid franchise. He is a mysterious immortal supervillain and serves as a major antagonist in Monster Kid, Monster Kid: Master of Monsters,Monster Kid: Evolution and Return of Monster Kid.

He serves as one of the four arch-enemies of Max Stewart.

Great Monster War of Earth
Dr. X was originally a human who lived during the start of the Great Monster War of Earth. He was one of the few humans captured by Zero and turned into humanoid creatures that feed on sunlight.