Line of Duty star Martin Compston has hinted that Sunday's series six finale could bring the curtain down on the police drama for good.But he has promised that fans will get a "perfect ending" this weekend when the climax finally arrives.The country is currently gripped and everyone has bucket loads of unanswered questions ahead of what is certain to be an explosive last hour this weekend.The show-stopping series six finale will surely see "H" finally exposed – but could it be the last one ever?Actor Martin, who plays fearless Steve Arnott in the show, said on the Jonathan Ross Show that there's a chance they may not record another series.Appearing alongside Vicky McClure, 37, the pair couldn't confirm if they will be back.Asked by the host.
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