Kuseno is an elderly man. He has elongated ears, a large nose, thin light eyes, grayish pupils and a thin frame. His hair is cut into a bowl shape and protrudes away from his head. Dr. Kuseno (クセーノ博士, Kusēno Hakase) is a scientist of justice. He performed surgery on Genos and turned him into a cyborg. Despite never having seen Saitama in action, Kuseno is aware of his strength due to how much Genos has talked about Saitama to him. He is also a member of the Saitama Group.