Jamie St John Bamber Griffith (born 3 April 1973) is an English actor, known for his roles as Lee Adama in Battlestar Galactica and Detective Sergeant Matt Devlin in the ITV series Law & Order: UK. He also had a supporting role in the Hornblower series and was a regular on the British series Ultimate Force and Peak Practice. In 2013, Bamber starred in the TNT medical drama Monday Mornings, and in 2014, in the Sky 1 drama The Smoke.