About
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.
Known for
Death in ParadiseSeries • 2011
Agatha Christie's PoirotSeries • 1989
CasualtySeries • 1986
The CrownSeries • 2016
Call the MidwifeSeries • 2012
Father BrownSeries • 2013
CitadelSeries • 2023
Celebrity MastermindSeries • 2003
Trial & RetributionSeries • 1997
Judge John DeedSeries • 2001
The JacketMovie • 2005
Agatha Christie's Seven DialsSeries • 2026
The Adventurer: The Curse of the Midas BoxMovie • 2013
An Enemy WithinMovie • 2025
The Gospel of JohnMovie • 2003
GladiatressMovie • 2004
Hannibal: Rome's Worst NightmareMovie • 2006