Albert Wesker is the main antagonist of the Resident Evil video game series. Wesker was a high-ranking researcher of the Umbrella Corporation who also served as a double agent within S.T.A.R.S., serving as the captain of Alpha Team. Wesker would later betray Umbrella and surface as a member of a mysterious organization looking to profit off of Umbrella's research. Eventually, Wesker would go on to pursue his own megalomaniacal desires for world domination with the Uroboros virus, but he was stopped by Chris Redfield and the BSAA. Even after his death, Wesker still has posthumous influences in Resident Evil 6, especially on his biological son, Jake Muller, who unknowingly carried his father's enhanced physiology and his dark legacy which would later be used by Carla Radames to produce C-Virus. Therefore, Wesker is arguably the main antagonist of almost the entire Resident Evil game franchise so far. He also has a sister named Alex Wesker, who was raised alongside him as part of Umbrella's Project W. He once had a lover (Jake Muller's mother) but broke up with her.