Gouken

Gouken (剛拳 Gōken?, "Strong Fist") is a character and a hero in the Street Fighter series. He is Ryu's adoptive father, Ryu and Ken's martial arts master, and Dan's former master as well as Akuma's older brother. Gouken's first actual appearance as a playable character was in Street Fighter IV as a boss character. He is an unlockable character in the home console version of the game.