Douglas Reith is a British actor and teacher. He is best known for his role as Lord Merton in the television series Downton Abbey (2010–2015), as well as its two follow-up films. Reith was born in Melton, Suffolk. He studied acting at the Webber Douglas Academy of Dramatic Art. He began acting in the late 1970s, beginning with an appearance in International Velvet (1978) alongside Tatum O'Neal and Christopher Plummer. He worked as an announcer and presenter at BBC Radio 3 for five years before leaving to study Greats at Christ Church, Oxford for four years beginning in 1989. He worked as a teacher, including at Westminster School, before resuming his acting career. Reith joined the cast of Downton Abbey as Lord Merton in 2012, and alongside the cast was nominated for the Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series at the 23rd Screen Actors Guild Awards. He reprised the role in the films Downton Abbey (2019) and Downton Abbey: A New Era (2022). In 2017, Reith was cast in Tim Burton's live-action remake Dumbo (2019). In 2019, he was cast in SAS: Red Notice (2021).
International Velvet
(Howard)
The War Below
(Field Marshal Haig)
W.E.
(Lord Brownlow)
Downton Abbey: A New Era
(Lord Merton)
Bloodlines: Legacy of a Lord
The Queen
(Lord Airlie)
Downton Abbey: The Grand Finale
(Lord Merton)
An Englishman Abroad
(Toby)
Enid
(BBC Interviewer)
Rush
(Awards Presenter)
The Queen's Sister
(Horace Featherstonehaugh)
Serial Teachers 2
(Le chef de la sécurité)
Dumbo
(Sotheby)
Downton Abbey
(Lord Merton)
SAS: Red Notice
(Sir Charles Whiteside)
The Happy Autumn Fields
(Fitzgeorge)
Professor T
(Dean)
Minder
(Bellars)
Rose and Maloney
Downton Abbey
(Lord Merton)
Fearless
(Justice Angus Hill)
Outlander
(Professor Brown)
Elizabeth I
(Jude)
Elizabeth I
(Judge)
The Prince and the Pauper
(Chamberlain)
Pandora
(Prescott Fleming)
Agatha Raisin
(Lord Pendlebury)
The Crown
(Admiral Leach)
Ancient Rome: The Rise and Fall of an Empire
(Metellus)
Playhouse
(Fitzgeorge)
Cold Warrior
(Ferris)
Rumpole of the Bailey
(Sergeant Downs)