In memory of Lisa Marie Presley, Harry Belafonte, Raquel Welch, Tina Turner, and other performers, singers, writers, and other "Celebrities Who Died In 2023". Learn more about their lives and work by reading on. Actor Michael Gambon, who portrayed the well-known superstar Harry Potter, passed away from pneumonia on September 28 at the age of 82. Years before the late Richard Harris was replaced by the Irish-English actor in the fantasy film series as Hogwarts headmaster Albus Dumbledore,