<Tr> <Th> 2001--2002 </Th> <Td> Greenock Morton </Td> <Td> </Td> <Td> (0) </Td> </Tr> <Tr> <Td_colspan="4"> * Senior club appearances and goals counted for the domestic league only . </Td> </Tr> <P> 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 . </P> <P> Compston was born and brought up in Greenock, Inverclyde, and attended St Columba's High School in neighbouring Gourock . A youth footballer, after leaving school he signed for local professional team Greenock Morton . Compston made two first team appearances in the 2001--02 Scottish First Division season, in which the team were relegated from the Scottish Football League First Division . In both matches he appeared as a substitute . Both times Morton lost 4--0, to Alloa Athletic and Queen of the South . </P>

Who plays ds arnott in line of duty