
William Sylvester
ActingAbout William Sylvester
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.
William Sylvester Movies & Career Overview
The filmography of William Sylvester reflects a career marked by diverse experimentation. Across 37 major appearances, the actor has built a reputation through performances in multiple genres and storytelling styles.
Dominant Genre
A large portion of William Sylvester's work falls within the Drama genre, where audiences tend to respond most strongly to their on-screen presence.
Success Ratio
Approximately 24% of William Sylvester's films maintain ratings above 6.5, indicating a consistent level of audience approval.
One of the most highly rated entries in their career remains 2001: A Space Odyssey, which stands out as a key performance.
Best William Sylvester Movies Ranked
Must-watch hits from William Sylvester's career based on audience ratings.
Full Filmography
Every movie William Sylvester has appeared in, with audience ratings and verdicts.
| Year | Movie | Character | Success | More |
|---|---|---|---|---|
| 2013 | The 9th Wonder of the World: The Making of 'Gorgo' | Sam Slade (archive footage) | Hit | Similar → |
| 2001 | 2001: The Making of a Myth | Dr. Heywood R. Floyd (archive footage) (uncredited) | Hit | Similar → |
| 1995 | Roger Moore: A Matter of Class | Self (archive footage) | Super Hit | Similar → |
| 1980 | First Family | TV Commentator Howard | Flop | Similar → |
| 1978 | Heaven Can Wait | Nuclear Reporter | Hit | Similar → |
| 1976 | Riding with Death | Leonard Driscoll | Flop | Similar → |
| 1975 | The Hindenburg | Luftwaffe Colonel | Average | Similar → |
| 1974 | Busting | Mr. Weldman | Average | Similar → |
| 1973 | Don't Be Afraid of the Dark | Tom Henderson | Average | Similar → |
| 1970 | The Lawyer | Paul Harrison | Flop | Similar → |
| 1970 | The Challengers | Brad York | Flop | Similar → |
| 1968 | The Syndicate | Burt Hickey | Flop | Similar → |
| 1968 | The Hand of Night | Paul Carver | Flop | Similar → |
| 1968 | Red and Blue | Trumpeter | Average | Similar → |
| 1968 | 2001: A Space Odyssey | Dr. Heywood Floyd | Super Hit | Similar → |
| 1967 | You Only Live Twice | Pentagon Official (uncredited) | Hit | Similar → |
| 1965 | Devils of Darkness | Paul Baxter | Flop | Similar → |
| 1964 | Devil Doll | Mark English | Flop | Similar → |
| 1964 | Ring of Spies | Gordon Lonsdale | Hit | Similar → |
| 1964 | Blind Corner | Paul Gregory | Flop | Similar → |
| 1963 | Incident at Midnight | Vince Warren | Hit | Similar → |
| 1961 | Information Received | Rick Hogan | Flop | Similar → |
| 1961 | Gorgo | Sam Slade | Flop | Similar → |
| 1961 | Offbeat | Layton / Steve Ross | Average | Similar → |
| 1959 | Whirlpool | Hermann | Average | Similar → |
| 1958 | The Caine Mutiny Court-Martial | - | Flop | Similar → |
| 1958 | Dublin Nightmare | John Kevin | Average | Similar → |
| 1957 | High Tide at Noon | Alec Douglas | Average | Similar → |
| 1955 | Portrait of Alison | Dave Forrester | Average | Similar → |
| 1954 | The Stranger Came Home | Philip Vickers | Flop | Similar → |
| 1954 | What Every Woman Wants | Jim Barnes | Average | Similar → |
| 1953 | Albert R.N. | Texas | Hit | Similar → |
| 1953 | House of Blackmail | Jimmy | Average | Similar → |
| 1953 | Appointment in London | Mac | Average | Similar → |
| 1953 | The Yellow Balloon | Len Turner | Average | Similar → |
| 1950 | They Were Not Divided | American Soldier (uncredited) | Average | Similar → |
| 1949 | Give Us This Day | Giovanni | Average | Similar → |
William Sylvester - Frequently Asked Questions
What is the best movie of William Sylvester?
According to audience ratings, the best movie starring William Sylvester is "2001: A Space Odyssey" with a rating of 8.1/10.
How many movies has William Sylvester acted in?
William Sylvester has been featured in at least 37 major films throughout their career.
What are some other popular movies by William Sylvester?
Other notable films include "Roger Moore: A Matter of Class", "Albert R.N.", and "The 9th Wonder of the World: The Making of 'Gorgo'".




