The diving legend, who became the first out gay Olympian to win a gold medal during the 2008 Summer Games, will make his U.K. acting debut later this. 15 Sexy Pics of Olympic Athlete Matthew Mitcham Who Joined OnlyFans Bernardo Sim | 02/09/23 Instagram (@matthewmitcham88) From Brisbane, Australia, Matthew Mitcham competed as a diver and.