William Sylvester

William Sylvester (January 31, 1922 – January 25, 1995) was an American television and film actor. His most famous film credit was Dr. Heywood Floyd in Stanley Kubrick's 2001 A Space Odyssey (1968).
William Sylvester was born in Oakland, California, the son of Italian immigrant Joseph Silvester (1899–1941) and his American wife, Gertrude Bailey Silvester (1898–1957). He served in the U.S. Navy during the Second World War, and settled in Britain after the war to pursue his interest in professional acting. He became a staple of British B films at a time when American and Canadian actors were much in demand to give indigenous films some appeal in the United States. While in the UK, he married British actress Veronica Hurst.
As a result, he gained top billing in one of his first films, House of Blackmail (1953), directed by the veteran filmmaker Maurice Elvey, for whom he also made What Ever…