Duncan's break through role was on the
ITV drama series
Law & Order UK as troubled teen Danny Heywood. "I think, most of the time, Callum is the kind of character who just doesn't really want to be bothered by anything or anyone. He wants to do his own thing, get on with his own life, and he's very introverted" but "Callum is very caring deep down." Laurie has also confessed that he "doesn't get" Callum's heart-throb status "That's Callum, not me." in October 2013, Callum was killed off. His exit came as part of a "cast cull", which coincided with the show's 18th anniversary. Duncan's departure from the show was kept secret to ensure viewers would be surprised. The actor later admitted that he cried when he learned that he was leaving. Duncan joined the Army Reserve in 2016 and is currently serving with the Honourable Artillery Company based in the City of London. ==Filmography==