Acting
- 2001Judge John DeedSir Michael Nivan5 ep.
- 1998UltravioletGideon1 ep.
- 1997The Man Who Made Husbands JealousDavid Hawkley3 ep.
- 1994The Memoirs of Sherlock HolmesCharles Damant2 ep.
- 1986First Among EqualsHenry Lindsay6 ep.
- 1985Edge of DarknessChilds3 ep.
- 1985Screen TwoSylvia's Lover1 ep.
- 1980A Question of GuiltGeorge Matthews4 ep.
- 1978Edward and Mrs SimpsonDuff Cooper (as Trevor Bowen)2 ep.
- 1976Dickens of LondonJohn Forster3 ep.
- 1975The Hanged ManMichael Preston1 ep.
- 1972Crown CourtJack Lowery6 ep.
Behind the camera
- 2008Rosamunde Pilcher's Four SeasonsWriter2 ep.
- 2002Helen WestWriter1 ep.
- 2000The SecretWriter3 ep.
- 1997The Rag NymphScreenplay3 ep.
- 1995The Gambling ManWriter3 ep.
- 1994The Memoirs of Sherlock HolmesAdaptation, Writer2 ep.
- 1989Agatha Christie's PoirotScreenplay1 ep.
- 1987Miss Marple: NemesisWriter2 ep.
- 1986The Return of Sherlock HolmesWriter2 ep.
- 1986LovejoyWriter4 ep.
- 1985DrummondsWriter3 ep.
- 1985Miss Marple: A Pocketful of RyeScreenplay2 ep.
- 1984Miss Marple: The Body in the LibraryScreenplay, Writer3 ep.
- 1984Miss MarpleWriter1 ep.
- 1984Sherlock HolmesAdaptation, Dramaturgy, Screenplay4 ep.
- 1984Love and MarriageWriter1 ep.
- 1982The Agatha Christie HourWriter2 ep.
- 1977The Sunday DramaWriter1 ep.
Guest appearances
- 2001Judge John DeedMr. Justice Michael Nivan, Sir Michael Nivan, Sir Michael Niven6 ep.
- 1998UltravioletGideon1 ep.
- 1997Pie in the SkyMarcus Benson1 ep.
- 1994Sherlock HolmesCharles Damant1 ep.
- 1994The Memoirs of Sherlock HolmesCharles Damant1 ep.
- 1986First Among EqualsHenry Lindsay6 ep.
- 1985Edge of DarknessChilds3 ep.
- 1985Screen TwoSylvia's Lover1 ep.
- 1980A Question of GuiltGeorge Matthews4 ep.
- 1978Edward and Mrs SimpsonDuff Cooper (as Trevor Bowen)2 ep.
- 1976Dickens of LondonJohn Forster3 ep.
- 1975Crown CourtJack Lowery, Jeremy Parsons QC6 ep.
- 1975The Hanged ManMichael Preston1 ep.
Also known as: Тревор Боуэн · Trevor Bowen · TR Bowen · T.R. 보웬