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When last man standing DSU Ian Buckells smugly asked Supt Ted Hastings if heâd like a glass of water, I honestly thought the gaffer might lean across the desk and punch that smirk clean off his face.
Here are some of the unanswered questions viewers may have after watching…
What was the full extent of Philip Osborne’s involvement in corruption and cover-ups?
Just because Buckells was exposed as the OCG rat doesn’t mean everyone else is exonerated – quite the opposite. Instead, as Ted Hastings (Adrian Dunbar) explains to Patricia Carmichael (Anna Maxwell Martin), Buckells’s rise through the ranks was only facilitated by institutional failings that went right to the top.
Ian Buckells (Nigel Boyle) comes clean in the Line of Duty finale (BBC)
Exactly how complicit Chief Constable Osborne was in the various crimes and scandals AC-12 were looking at is still unknown; for now, it seems, he’s gotten away with his role in Vella’s murder. With Carmichael in charge, however, it seems likely everything will be swept under the rug.
Line of Duty finale mysteries explained â Buckells true identity to Ted Hastings fate
Line of Duty season six left more mysteries than answers in the finale, but now Daily Star has compiled the ultimate explainer for confused viewers, from the truth behind Buckells past to what happened to Ted Hastings
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DSI Marcus Thurwell (James Nesbitt) is reportedly Ladbrokes favourite to be unveiled as the antagonist with odds of just 7/4, with viewers convinced that the bent copper is still alive despite being declared dead by Spanish officers in the last episode.
Meanwhile, DCI Patricia Carmichael (Anna Maxwell Martin) has odds of being the villain of 2/1 according to Betfred.
Caught at last? By the look of determination on their faces, Kate and Steve look set to finally put an end to the mystery that has eluded them for months - but viewers will have to wait and see whether they do have H in their sights
At last, a resolution of sorts. The Fourth Man, formerly the con artist known as H, was finally revealed to a nation who have gorged on red herrings and deep fried dead ends since the wee donkey was just a wee foal.
Yet when the great reveal came, it was still a bit of a shock to everyone, including AC-12.
‘He’s been under our noses since the beginning,’ cried DI Steve Arnott (Martin Compston). ‘What does this make us look like?’ wailed DI Kate Fleming (Vicky McClure).
What indeed? Anyone who mentions the Keystone Kops will be arrested on sight.