who plays ds arnott in line of duty
Martin Compston Martin Compston (born 8 May 1984) is a Scottish actor and former professional footballer. He is perhaps most well known for his lead role as Anti-Corruption Unit Detective Sergeant Steve Arnott in hit BBC crime drama Line of Duty. His other notable roles include Liam in Ken Loach's Sweet Sixteen, Paul Ferris in 2013 blockbuster The Wee Man, and Ewan Brodie in Monarch of the Glen.[1]