Professor Graybon, also known as Dr. Graybon or Graybon Hakase, operates as a scientific authority and technological innovator across multiple continuities. Consistently depicted as a genius inventor, he designs and constructs specialized combat suits called B-Da Armors. Piloted by main protagonists through their B-Da marbles, these mechas substantially amplify combat capabilities against diverse threats.

In the Bakugaiden IV storyline, Graybon creates the initial B-Da Armor generation: White Gale, Blue Sniper, Red Buster, and Yellow Shooter. After their destruction, he develops upgraded replacements like White Blows (White Gale III), Blue Braiver, Yellow Crusher, and Black Devaster. He engineers combined configurations such as Saint Blaster and Saint Dragon, integrating multiple suits for heightened power. His workshop features an assistant named Mimitan, a bat-like creature aiding technological development.

Graybon’s role extends into the Bakugaiden V continuity, where he continues designing armors for the B-da Cops, solidifying his consistent function as the team’s primary technological supporter across eras and storylines.