Line of Duty star Craig Parkinson, who played DI Matthew 'Dot' Cottan, has revealed Sunday night's series six finale will "break viewers' hearts".
The actor, who hosts the BBC's Obsessed with... Line of Duty podcast, has already watched the hotly-anticipated series finale which could be the last ever episode of the popular police drama.
But he refused to reveal the identity of the mysterious crime boss H, who is thought to be unmasked at last in the programme.
On his BBC Radio 2 show, Dermot O’Leary asked Craig, 45, if viewers were "in for a belter". "I think it's going to shock people," replied Craig. "I think people are going to be frustrated, it’s exhilarating, it’s exciting… these aren’t soundbites, I’ve seen it four times, honestly,
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