Bang

Race: Human
Age: 81
Height: 165 cm (5'5")
Weight: 55 kg (121 lbs)
Abilities: Superhuman Strength, Superhuman Agility, Superhuman Speed, Water Stream Rock Smashing Fist
Occupation: Superhero
Level: S-Class; Rank 3
Affiliation: Hero Association
Relatives: Bomb (older brother)

Bang is an S-Class, rank 3, superhero for the Heroes Association, settled in Z-City. Bang owns a dojo passed down from generations, and uses the fighting style the Rock-Smashing Water Stream Fist. He is also one of the few who acknowledges Saitama's immense power.

Bang is an old man with white-spiky hair, thick eyebrows and a thick mustache. He has distict wrinkles on his face, a squarish chin and has a slight tan skin. He wears a dark shirt, light colored pants and kung fu shoes.

Bang has a serious personality, he acts calm and does not seem to be afraid at the prospect of stopping a dragon-level disaster meteor. He also prefers to be called by his name.

Bang being in the top 3 of the S-Class ranking, he is acknowledged by the public and heroes to be a strong fighter. Not much is known about Bang's abilities other than that he uses a martial art called "Rock-Smashing Water Stream Fist."

(Source: One Punch-Man Wiki)