Filmography
| Year | Title | Role | Notes |
|---|---|---|---|
| 1988 | Piece of Cake | Flying Officer 'Flash' Gordon | |
| 1989 | Inspector Morse: Deceived By Flight | Jamie Jasper | |
| 1989 | Never Come Back | Desmond Thane | |
| 1989 | War Requiem | Wilfred Owen | |
| 1990 | Harry Enfield's Television Programme | "Fire Man" | Episodes 1-4 |
| 1990 | Heroes II: The Return | Ivan Lyon | |
| 1990 | Hamlet | Laertes | |
| 1991 | Absolute Hell | Sam Mitchum | |
| 1991 | Agatha Christies's Poirot: The Affair at the Victory Ball | Chris Davidson | |
| 1991 | The War that Never Ends | Alcibiades | |
| 1991 | The Black Candle | Lionel Filmore | |
| 1992 | Look at it this Way | Miles | |
| 1992 | The Bodyguard | Clive Healy | |
| 1993 | The Vision Thing | Michael Fisher | |
| 1993 | Rik Mayall presents: Dancing queen | Nigel | |
| 1993 | Wide Sargasso Sea | Edward Rochester | |
| 1994 | Unsigned (the shooting Gallery) | The Devil | |
| 1994 | Without walls for one night only - Errol Flynn | Errol Flynn | |
| 1994 | A villiage Affair | Marin Jordan | |
| 1994 | Squanto: A Warrior's Tale | Thomas Dermer | |
| 1994 | Dangerous Games | Thomas Cranmer | |
| 1995 | A Touch of Frost: Quarry | Stephen Milmore | |
| 1995 | Othello | Cassio | |
| 1995 | A little loving | Greek God Pan | |
| 1996 | Short Cut | Ross | Short film |
| 1997 | Beverly Hills Ninja | Martin Tanley | |
| 1997 | Into Thin Air: Death On The Everest | Rob Hall | |
| 1997 | The Bible: David | David | |
| 1998 | Far from the Madding Crowd | Gabriel Oak | |
| 1998 | Vanity Fair | Rawdon Crawley | |
| 1999 | Trust | Andrew Pearce | |
| 1999 | McCallum: Beyond Good and Evil | Dan Gallagher | Series 3 |
| 2000 | Lover's Prayer (aka All Forgotten) | Valdimir's Father | |
| 2000 | Pretending to be Judith | James Lovel | |
| 2001-2007 | The Inspector Lynley Mysteries | Inspector Thomas Lynley | |
| 2003 | Haunted Mansion | Master Gracy | |
| 2003 | The Private Life of Samuel Pepys | Charles II | |
| 2004 | Happy Birthday Oscar Wilde | Himself | |
| 2005 | Bedtime Stories | Narrator | |
| 2005 | Bleak House | Harrold Skimpole | |
| 2005 | Fade to Black | Guido Viola | |
| 2006 | Flawless | Oliver Ashtoncroft | |
| 2006 | Stardust | Dustan Thorn | |
| 2006 | Nuremberg: Nazis on Trial | Albert Speer | |
| 2006 | A Class Apart | Anthony Troth | |
| 2007 | I really hate my job | Guy II | Cameo role |
| 2007 | St. Trinian's | Chairman of the National Gallery | Cameo role |
| 2008 | Hotel Babylon: Is love really in the air? | Alexander Crawfield | Series 3 episode 2 |
| 2009 | Malice In Wonderland | Harry Hunt | |
| 2009 | The Perfect Host | Detective Morton | |
| 2009 | The Courageous Heart of Irena Sendler | Dr Juliusz Majkowski | |
| 2009 | Land Girls | Lord Lawrence Hoxley | series 1 |
| 2009 | Lewis: The dead of winter | Lieutenant Philip Coleman | Series 4 |
| 2009 | My Family | Uncle Richard | BBC; Christmas episode 2009 |
| 2010 | The Domino Effect | Tramp | |
| 2010 | Sergeant Slaughter | Father | |
| 2010 | Tell Me | Dr. Anton Sharple | |
| 2010 | The Chronicles of Narnia (Dawn Treader) | Caspian IX | Cameo role |
| 2010 | Injustice | Marin Newall | |
| 2011 | Merlin | Agravaine | Series 4 |
| 2012 | The Proxy | Peter Baker | |
| 2012 | The Charles Dickens Show | Doctor Guffquatt | |
| 2012 | Me and Mrs Jones | Tom Marshall | |
| 2012 | Still Life: An Inspector Gamache Mystery | Chief Inspector Armand Gamache |
Read more about this topic: Nathaniel Parker