Martin Compston is a Scottish actor and former professional footballer. He is perhaps most wellknown for his lead role as AntiCorruption Unit Detective Sergeant Steve Arnott in hit BBC Two crime drama Line of Duty. His other notable roles include Liam in Ken Loachs Sweet Sixteen and Ewan Brodie in Monarch of the Glen.
Compston was born and brought up in Greenock, Inverclyde, and attended St. Columbas High School in neighbouring Gourock. A youth footballer, after leaving school he signed for local professional team Greenock Morton. He has an older brother, Barry.
Source: Wikipedia