Ken Kanzaki

Age 20.

A cheerful, but easily irritated officer in the Tokyo Metropolitan Police Department. He was adopted and raised by police officer Genichirou Kanzaki, who met Ryo's biological mother while she was dying in the street. He is an expert marksman whose favorite gun is one that once belonged to his father. After being resurrected, he is forced to keep his membership in the Metal Jack unit a secret from his coworkers, although he eventually reveals his secret to the Chief in Episode 30. Loves his cybernetic police dog Lander. His blood type is a rare RH minus T type. When he undergoes the Hyperization process after he is mortally wounded a second time, his cells develop a high rate of necrosis to compensate for his actual biological origin. He is deeply afraid of snakes.

(Source: Wikipedia)