Algol

Algol (アルゴル Arugoru) is a character in the Soul series of fighting games and the main antagonist in Soulcalibur IV. He can be played like other standard characters, but must be unlocked by defeating him in Story Mode. He appears as one of the final bosses along with Siegfried and Nightmare. Algol has also returned for Soulcalibur: Broken Destiny and Soulcalibur V (in which he served as the secret antagonist). As the oldest recorded wielder of Soul Edge, likely responsible for much of its power, and the creator of Soul Calibur, he is ultimately the series' primary antagonist.