Martin Compston has crushed fans by claiming Sunday's Line of Duty season finale could be the last ever episode.The hit BBC crime drama has been running for nine years, and has so far produced six seasons, gripping viewers as they try to work out who 'the fourth man' making up a corrupt group of police officers titled 'H' could be.
But Martin, 36, who plays Detective Inspector Steve Arnott on the hit show, has hinted it may not return for a seventh season.
He claims the cast, which includes Adrian Dunbar and Vicky McClure, are yet to be told if they will be back on screens together.
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