William Birkin Profile
A world-renowned scientist working for Umbrella. He is the primary figure responsible for the development of the G-virus. He was also a core component in continuing the research on the T-virus where Marcus left off. However, some unpleasantness arose between him and Umbrella, prompting him to approach the U.S. military. Umbrella responded by sending in their special forces.
Shortly before his death at their hands, he injected himself with the G-virus and transformed into a monster. He is survived by a daughter, Sherry, from his late wife Annette.