Dr. Umataro Tenma is a recurring major character in the Astro Boy series. He is a legendary robotics engineer and a PhD. graduate from Nerima University. Tenma gained widespread fame for developing the Bewusstsein artificial intelligence with his roommate Hiroshi Ochanomizu. Later in his career he becomes the Minister Of Science and creates Astro, a robotic boy with human emotions and the first robot using the Kokoro AI after the sudden death of his son Tobio Tenma in a car accident.