Balrog (M. Bison in the Japanese version), an African-American boxer, designed with a similar appearance to Mike Tyson.
Vega (Balrog in the Japanese version), a Spanish cage fighter who uses a unique style of ninjutsu.
Sagat, a one-eyed Muay Thai master and the final boss in the original Street Fighter, who was scarred by Ryu in the end of the previous tournament.
M. Bison (Vega in Japan), the leader of the criminal organization Shadaloo, who uses a mysterious power known as "Psycho Power", and the final boss of the game.
Balrog was designed as a pastiche of real-life boxer Mike Tyson and was originally named M. Bison (short for "Mike Bison") in the Japanese versions, while Vega and M. Bison were originally named Balrog and Vega respectively. When the game was localized for the overseas market, the names of the bosses were rotated because the name and resemblance could have led to a likeness infringement lawsuit.[5]