Albert Wesker is one of the central characters in Capcom's Resident Evil series (Biohazard in Japan).
He is first introduced in the original Resident Evil game, in which he is the captain of US police team STARS. His character is further explored in subsequent installments, which feature Wesker as a recurring character within the series extensive narrative.
Wesker was the main antagonist for much of the series, surpassing even Oswell E. Spencer. The film version of Wesker is played by Jason O'Mara in Resident Evil: Extinction and Shawn Roberts in Resident Evil: Afterlife and Resident Evil: Retribution. He has a son named Jake Muller who is introduced in Resident Evil 6.