| Movie | 1985 | Brazil | Mr. Warrenn | |
| Movie | 1993 | M. Butterfly | Ambassador Toulon | |
| Movie | 2001 | From Hell | Sir Charles Warren | |
| Movie | 1998 | Dark City | Mr. Book | |
| Movie | 2007 | Becoming Jane | Richter Langlois | |
| Movie | 1986 | Whoops Apocalypse | Rear Admiral Bendish | |
| Movie | 1987 | The Fourth Protocol | Sir Nigel Irvine | |
| Movie | 2006 | Twice Upon a Time | Lord Evelyn Gaylord | |
| Movie | 2007 | Hogfather | Death | |
| Movie | 2005 | Joyeux Noel | The Bishop | |
| Movie | 1998 | A Knight in Camelot | Merlin | |
| Movie | 1992 | An Ungentlemanly Act | His Excellency, Governor Rex Hunt | |
| Movie | 1997 | Incognito | Turley (prosecutor) | |
| Movie | 1999 | The King and I | The Kralahome (voice) | |
| Movie | 1997 | B.A.P.S | Manley | |
| Movie | 1996 | Catherine the Great | Vorontzov | |
| Movie | 1996 | The Treasure Seekers | Haig | |
| Movie | 1993 | Dirty Weekend | Nimrod | |
| Movie | 1983 | The Hound of the Baskervilles | Sherlock Holmes | |
| Movie | 1994 | A Change of Place | Henri Chambertin | |
| Movie | 1979 | Charlie Muffin | Cuthbertson | |
| Movie | 1984 | The Master of Ballantrae | Mr. MacKellar | |
| Movie | 1990 | King of the Wind | Bey of Tunis | |
| Movie | 1985 | Monsignor Quixote | Bishop of Motopo | |
| Movie | 1983 | The Sign of Four | Sherlock Holmes | |
| Movie | 1988 | Burning Secret | Edmund's Father | |
| Movie | 2022 | Memorial Memorial | Francis Urquhart (voice) | |
| Movie | 1968 | A Midsummer Night's Dream | Oberon | |
| Movie | 2000 | Murder Rooms: The Dark Beginnings of Sherlock Holmes | Dr. Joseph Bell | |
| Movie | 1990 | The Plot to Kill Hitler | Ludwig Beck | |
| Movie | 1993 | Remember | Philip Rawlings | |
| Movie | 1997 | The Canterville Ghost | Simon de Canterville | |
| Movie | 1992 | Year of the Comet | Sir Mason Harwood | |
| Movie | 1972 | Man of La Mancha | The Padre | |
| Movie | 2004 | Dæmos Rising | Narrator | |
| Movie | 1979 | Ike | FM Sir Bernard Montgomery | |
| Movie | 1980 | Gauguin the Savage | Degas | |
| Movie | 1978 | Danton's Death | Robespierre | |
| Movie | 1997 | A Royal Scandal | Narrator | |
| Movie | 2005 | The Booze Cruise II: The Treasure Hunt | Marcus Foster | |
| Movie | 2006 | The Booze Cruise III: The Scattering | Marcus | |
| Movie | 1987 | Cry Freedom | State Prosecutor | |
| Movie | 1972 | The Darwin Adventure | Capt. Fitzroy | |
| Movie | 1968 | All's Well That Ends Well | Bertram | |
| Movie | 1963 | As You Like It | Le Beau | |
| Movie | 1989 | The Winslow Boy | Sir Robert Morton, KC | |
| Movie | 2000 | 3-D Halloween | Narrator | |
| Movie | 1985 | Star Quality | Ray Malcolm | |
| Movie | 2004 | Nero | Septimus | |
| Movie | 1991 | Rosencrantz & Guildenstern Are Dead | Polonius | |
| Movie | 1998 | Alice Through the Looking Glass | Wasp | |
| Movie | 1987 | Blunt | Anthony Blunt | |
| Movie | 2005 | The Adventures of Greyfriars Bobby | Judge | |
| Movie | 1979 | Churchill and the Generals | Gen. Bernard L. Montgomery | |
| Movie | 1973 | Gawain and the Green Knight | Narrator (voice) | |
| Movie | 1978 | Sorry... | Michael - 'Private View' | |
| Movie | 1994 | Words Upon the Window Pane | Dr. Trench | |
| Movie | 1997 | The Woman In White | Mr. Fairlie | |
| Movie | 1987 | The Devil's Disciple | General Burgoyne | |
| Movie | 1967 | Marat/Sade | Jean-Paul Marat | |
| Movie | 2000 | 102 Dalmatians | Mr. Torte | |
| Movie | 1982 | A Cotswold Death | Inspector Anthony Arrowsmith | |
| Movie | 1997 | The Fifth Province | Dr. Drudy | |
| Movie | 2002 | The Life of Shakespeare | self | |
| Movie | 1983 | Salad Days | Uncle Zed | |
| Movie | 1995 | Savage Play | Count | |
| Movie | 1993 | Foreign Affairs | Edwin | |
| Movie | 1984 | Slimming Down | Mr. Shrigley | |
| Movie | 1982 | Passing Through | Richard | |
| Movie | N/A | Sherlock Holmes' mysteries : The White Knight Stratagem | Dr. Joseph Bell | |
| TV Show | 2005 | Bleak House | Chancellor | 5 |
| TV Show | 1962 | The Merv Griffin Show | Self | 1 |
| TV Show | 2003 | Strange | Canon Adolphus Black | 6 |
| TV Show | 1999 | The Magician's House | Stephen Tyler | 12 |
| TV Show | 1951 | Hallmark Hall of Fame | Mr. MacKellar | 1 |
| TV Show | 2000 | Gormenghast | Lord Groan | 4 |
| TV Show | 1981 | Private Schulz | Major Neuheim | 6 |
| TV Show | 1982 | The Woman in White | | 1 |
| TV Show | 1990 | House of Cards | Francis Urquhart | 4 |
| TV Show | 1990 | The Gravy Train | Michael Spearpoint | 4 |
| TV Show | 1979 | Tinker Tailor Soldier Spy | Bill Haydon | 7 |
| TV Show | 1987 | Porterhouse Blue | Sir Godber Evans | 4 |
| TV Show | 1969 | Civilisation | Hamlet | 1 |
| TV Show | 1984 | Mistral's Daughter | Adrien Avigdor | 8 |
| TV Show | 2001 | Murder Rooms: Mysteries of the Real Sherlock Holmes | Dr. Joseph Bell | 4 |
| TV Show | 1984 | Six Centuries of Verse | Self - Reader | 10 |
| TV Show | 1992 | Chillers | Lee Mandeville | 1 |
| TV Show | 2004 | Agatha Christie's Marple | Conway Jefferson | 1 |
| TV Show | 1990 | The Phantom of the Opera | Cholet | 2 |
| TV Show | 2004 | Imperium: Nero | Settimio | 2 |
| TV Show | 1995 | The Final Cut | Francis Urquhart | 4 |
| TV Show | 1991 | The Gravy Train Goes East | Michael Spearpoint | 4 |
| TV Show | 1982 | The Woman in White | Frederick Fairlie | 5 |
| TV Show | 1986 | Lord Mountbatten: The Last Viceroy | Nehru | 6 |
| TV Show | 1993 | To Play the King | Francis Urquhart | 4 |
| TV Show | 1988 | Troubles | Edward Spencer | 2 |
| TV Show | 2006 | Hogfather | Death | 2 |
| TV Show | 1992 | Highlander: The Series | Max Leiner | 1 |
| TV Show | 1970 | Play for Today | Inspector Anthony Arrowsmith | 1 |
| TV Show | 1971 | Great Performances | Bishop of Motopo | 1 |
| TV Show | 1989 | Twist of Fate | SS-Sturmbannführer Doctor Schlossberg | 2 |
| TV Show | 1974 | Playhouse | Richard | 1 |
| TV Show | 1965 | BBC Play of the Month | Maximilien Robespierre | 1 |
| TV Show | 1963 | Festival | Antipholus of Ephesus | 1 |
| TV Show | 1964 | Theatre 625 | | 1 |
| TV Show | 1983 | Number 10 | James Ramsay MacDonald | 1 |
| TV Show | 1983 | Brass | Marshall Snelgrove, QC | 2 |
| TV Show | 1985 | Theatre Night | General Burgoyne | 1 |
| TV Show | 1979 | Ike | FM Sir Bernard Montgomery | 3 |