William Birkin (Resident Evil: Undead)

William Birkin is the secondary antagonist of ''Resident Evil: Undead. ''He was an Umbrella Corporation Executive and one of the people responsible for the outbreak as well as Albert Wesker's best friend. He was the developer of the G-Virus and is the husband of Annette Birkin and father of Sherry Birkin. He joined Albert Wesker's group as it's second in command.