Wolfgang Grimmer
A freelance journalist who is researching Kinderheim 511; he is also soon drawn into the search for Johan, as he decides to help Tenma. Spoiler As a former subject in 511 Kinderheim, he had developed another personality: an aggressive fighter that comes out and protects him whenever he is under dire stress, inspired by his childhood adoration for an Incredible Hulk-type TV character whom he refers to as the Magnificent Steiner. He also received training as a spy after his time in Kinderheim 511. Spoiler On episode 71 after witnessing the death of one of the citizens of Ruhenheim, his wrath explodes and suicidally murders 4 of the murderers of the villagers of Ruhenheim, where right after dies in front of Tenma. (Source: Wikipedia)