Bang (バング, Bangu), also known by his hero alias Silver Fang (シルバーファング, Shirubā Fangu), is a professional hero, a martial arts master, and the creator and teacher of Water Stream Rock Smashing Fist. He is the 3rd highest ranked S-Class hero of the Hero Association and is recognized as one of its most powerful heroes. He is currently settled in Z-City. In his youth, he was nicknamed Wind of Blood (血の風, Chi no kaze; Viz: BloodWind).

Bang and his brother, Bomb, are the two greatest masters of the martial arts world. He is currently trying to recruit new disciples into his dojo, with his main targets being Saitama and Genos. Bang is also one of the few that recognize Saitama’s strength and is part of the Saitama Group.

Bang is an elderly man and walks with a slight hunch in his back. He has light blue eyes and tan skin. He has spike white hair, thick white eyebrows, and a thick white mustache. He wears a long-sleeved black martial arts jumpsuit, light-colored pants, and Tai Chi slippers. Despite his old age, his body is lean and very muscular, and it is covered in scars.