Filmography30 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2022 | Midsomer Murders: 25 Years of MayhemMovie | Self | 79 |
| 2021 | The Great Wall: The Making of ChinaMovie | Narrator (voice) | 78 |
| 2019 | Midsomer Murders: 20th Anniversary SpecialMovie | Self | 76 |
| 2017 | Walks with My DogSeries | Self | 74 |
| 2015 | PoldarkSeries | Ray Penvenen | 72 |
| 2012 | Playhouse PresentsSeries | John Nettles | 69 |
| 2011 | Celebrity Antiques Road TripSeries | Self - Participant | 68 |
| 2009 | SkavlanSeries | Self - Guest | 66 |
| 2002 | The Hound of the BaskervillesMovie | Dr. James Mortimer | 59 |
| 1997 | Midsomer MurdersSeries | DCI Tom Barnaby | 54 |
| 1995 | All Men Are MortalMovie | Sanier | 52 |
| 1994 | Romeo and JulietMovie | Capulet | 51 |
| 1993 | The DetectivesSeries | Jim Bergerac | 50 |
| 1992 | HeartbeatSeries | Giles Sutton | 49 |
| 1991 | Tonight at 8.30Series | Peter Gilpin | 48 |
| 1989 | Under the SunSeries | Self - Narrator (voice) | 46 |
| 1986 | BoonSeries | Joe Green | 43 |
| 1983 | Natural WorldSeries | — | 40 |
| 1982 | The Agatha Christie HourSeries | Raoul Letardau | 39 |
| 1981 | BergeracSeries | DS Jim Bergerac | 38 |
| 1981 | Findings on a Late AfternoonMovie | Gerald | 38 |
| 1977 | BBC2 Play of the WeekSeries | Theo Redman | 34 |
| 1977 | The ProfessionalsSeries | CI5 agent shot on stairs in library (uncredited) | 34 |
| 1976 | Arnhem: The Story of an EscapeMovie | Theo Redman | 33 |
| 1974 | PlayhouseSeries | Gerald | 31 |
| 1972 | The Adventures of Black BeautySeries | Edwin Palgrave | 29 |
| 1970 | The Red, White, and BlackMovie | 10th Cavalry Trooper | 27 |
| 1970 | A Family at WarSeries | Ian Mackenzie | 27 |
| 1969 | The Liver BirdsSeries | Paul | 26 |
| 1968 | The ExpertSeries | John Franklin | 25 |