Vega (also known as バルログ - Balrog in Japan) is a fictional character from the Street Fighter fighting game series. Vega is a masked, claw-wielding warrior from Spain who uses a personal fighting style combining Japanese Ninjutsu, Savate, Zipota and Bullfighting, earning him the nickname the "Spanish Ninja".
Vega first appears in the original Street Fighter II as the second of four computer-controlled opponents the player faces at the end of the single-player mode, a group known as the Four Devas or Grand Masters. From Street Fighter II′: Champion Edition (the second version of the game) and onward, Vega, along with the other three boss characters, became a playable character. He reappears as a playable character in Street Fighter Alpha 3, the Street Fighter EX series (from Street Fighter EX2 and onward), the Capcom vs. SNK series, SNK vs Capcom: SVC Chaos , Street Fighter IV, Super Street Fighter IV and Street Fighter X Tekken.
Vega's backstory supplies that he is born to a noble family in Catalonia, Spain. As he matures, Vega studies bullfighting, a cultural tradition among the nobles. Afterward, he goes to Japan and learns Ninjutsu, a style he believes meshes well with his natural grace and agility. Returning home, Vega combines bullfighting with Ninjutsu and goes into an underground cage fighting circuit, where he quickly becomes one of the best. Tragedy strikes one day when Vega witnesses the murder of his beautiful mother at the hands of his stepfather. His mind is warped by the tragedy and, from then on, he lives a double life: a suave nobleman by day, and a sadistic masked murderer by night. He enjoys mutilating ugly people to death using a three-pronged forearm-mounted razor-sharp claw. His stepfather is his first victim.
Vega's bloodlust and brutal fighting skills impress the criminal leader M. Bison so much that he comes to him personally with an offer to join Shadaloo. Vega accepts Bison's offer purely to improve his own aesthetic senses. Bison instates Vega as one of his three personal Grand Masters bodyguards. Vega oversees assassination operations for Shadaloo as well.
Source: Wikipedia, "Vega (Street Fighter)", available under the CC-BY-SA License.