Millennion's founder and leader. He started the organization to protect his city and his "Family". He developed a bond with Brandon early in the latter's career in Millenion, which resulted in Brandon giving up Maria to Big Daddy out of loyalty to the man and the organization.

Spoiler

Big Daddy was killed by Harry out of jealousy and father of Mika . In the storyline of the video game, his health began to fail, leading Harry to use him as one of the first test subjects of the Necrolyzation process. Big Daddy appears as the game's final boss, living on as a twisted monster.

(Source: Wikipedia)