Вольфґанґ Ґріммер

A freelance journalist who is researching Kinderheim 511; he is also soon drawn into the search for Johan, as he decides to help Tenma.

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.