William Sylvester (January 31, 1922 – January 25, 1995) was an American TV and film actor. His most famous film credit was Dr. Heywood Floyd in Stanley Kubrick's 2001 A Space Odyssey (1968). Born in Oakland, California and married at one time to the British actress Veronica Hurst, he moved to England after the Second World War and became a staple of British B films at a time when American and Canadian actors were much in demand in order to give indigenous films some appeal in the US.
As a result, he gained top billing in one of his very first films, House of Blackmail (1953), directed by the veteran filmmaker Maurice Elvey, for whom he also made What Every Woman Wants the following year. He also starred in such minor films as The Stranger Came Home (1954, for Hammer), Dublin Nightmare (1958), Offbeat (1960), Information Received (1961), Incident at Midnight, Ring of Spies and Blind Corner (all 1963). There were also lead roles in four British horror films: Gorgo (1960), Devil Doll (1963), Devils of Darkness (1964) and The Hand of Night (1966). Among his many TV credits were a 1959 BBC version of Shakespeare's Julius Caesar (playing Mark Antony), The Saint, The Baron, The High Chaparral, Harry O and The Six Million Dollar Man.
His later films included You Only Live Twice (1967) and, back in the USA after his prominent role for Kubrick, Busting (1973), The Hindenburg (1975) and Heaven Can Wait (1978). He died in Sacramento, California in 1995, aged 72.
2013
as Sam Slade (archive footage)
2001
as Dr. Heywood R. Floyd (archive footage) (uncredited)
1995
as Self (archive footage)
1980
as TV Commentator Howard
1979
1979
as Lt. General Preston Myers
1978
as Nuclear Reporter
1977
1977
1976
as Joe Crawford
1976
as Leonard Driscoll
1976
as Leonard Driscoll
1975
as Luftwaffe Colonel
1975
as Ellis
1974
1974
as Mr. Weldman
1974
as Frederick Collins
1974
as Admiral Prescott
1973
as Tom Henderson
1973
as Peter Hayden
1972
as Dr. Stahl
1971
1970
as Paul Harrison
1970
as Brad York
1970
1969
as Paul Berwick
1968
as Burt Hickey
1968
as Paul Carver
1968
as Trumpeter
1968
as Dr. Heywood Floyd
1967
as Jack Simmons
1967
as Lafe Croswell
1965
as Tom Barber
1965
1965
as Paul Baxter
1964
as Mark English
1964
as Gordon Lonsdale
1964
as Paul Gregory
1963
1963
as Vince Warren
1962
as Foots Fortunati
1962
as Ralph Damien
1961
as Rick Hogan
1961
as Sam Slade
1961
as Layton / Steve Ross
1959
as Hermann
1958
1958
as John Kevin
1957
as Alec Douglas
1955
as Dave Forrester
1954
as Philip Vickers
1954
as Jim Barnes
1953
as Texas
1953
as Jimmy
1953
as Mac
1953
as Len Turner
1950
as American Soldier (uncredited)
1949
as Giovanni