Leon S. Kennedy
Ark Thompson is an acquaintance of Leon S. Kennedy who was sent by him to Sheena Island to investigate the Umbrella's facilities there, where the company has its private township, soon after the Raccoon City incident in 1998. He ends up posing as Vincent Goldman, an Umbrella manager, but loses his memory after a helicopter crash. During the game, he is led to believe that he is Vincent Goldman and is mistakenly blamed for the T-virus outbreak on the island. As he investigates, he progressively gets his memories back and confronts the real Vincent Goldman. He eventually escapes the facility before its destruction aboard a helicopter along with Lott and Lily Klein, two children of Umbrella scientists whose parents died in the incident.