Tristan John Gemmill (born 6 June 1967) is an English actor, most notable for his roles as Dr Adam Trueman on Casualty, and Robert Preston in Coronation Street. He was educated at Holmewood House School, Royal Tunbridge Wells, Kent, up to the age of 13. He then won an Academic Scholarship to Tonbridge School.
2026Twenty Twenty SixTV showas Daniel Krassman · 1 episodes2026Agatha Christie's Seven DialsTV showas Doctor Jackman · 1 episodes2025An Enemy WithinMovieas William Wingate2023CitadelTV showas Banker · 1 episodes2016The CrownTV showas Dr Richard Thompson · 2 episodes2013The Adventurer: The Curse of the Midas BoxMovieas Isambard Black2013Flying BlindMovieas Robert
2013Comet: A Great British Air DisasterMovieas Self - Narrator (voice)2013Father BrownTV showas Inspector Neil Beckett · 1 episodes2012Call the MidwifeTV showas Clifford Raines · 1 episodes2011Death in ParadiseTV showas Marc Campese · 1 episodes2007MeadowlandsTV showas David York · 8 episodes2006Hannibal: Rome's Worst NightmareMovieas Varro
2006MayoTV showas Lawrence Davis · 1 episodes
2005The Golden HourTV showas Sgt Jim Travis · 1 episodes2005The JacketMovieas Officer Nash
2005Distant ShoresTV showas Duncan McCallister · 6 episodes2004GladiatressMovieas Firmus
2003Celebrity MastermindTV show1 episodes2003The Gospel of JohnMovieas Andrew
2003The Life of JesusMovieas Andrew
2003Red CapTV show1 episodes2001Judge John DeedTV showas Dr. David Barbara · 1 episodes1999Loose WomenTV showas Self · 1 episodes
1999NancherrowTV show2 episodes
1999NancherrowMovieas Walter1997Trial & RetributionTV showas Meadows, Actor · 1 episodes1989Agatha Christie's PoirotTV showas Major Despard · 1 episodes1986CasualtyTV showas Adam Trueman · 191 episodes
1981Winston Churchill: The Wilderness YearsTV showas Schoolboy · 1 episodes