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H IS REVEALED: Line of Duty Finale answers long awaited questions


The mysterious ‘H’ has been revealed. Warning: serious Line of Duty spoilers incoming. 

You can still leave. DO NOT read any further if you haven’t seen the Line of Duty Finale.


Last warning...


And so, ‘H’ was revealed to be Detective Superintendent Ian Buckells, played by Birmingham star - Nigel Boyle. The character was finally caught by AC-12, who have spent the last few series working out the identity of the arch-villain.

During series six, Buckells coaxed a false testimony out of Deborah Devereux to link Terry Boyle to the murder of journalist Gail Vella. Buckells and Devereux had been romantically involved so she was a willing witness but AC-12 soon saw through their ruse. When Buckells was arrested, AC-12 also found an incriminating laptop hidden in his car, although he denied having any knowledge of how it got there. Buckells was also the one who had undercover OCG member PC Ryan Pilkington (played by Gregory Piper) join MIU, who then went on to threaten DCI Jo Davidson.

Line of Duty

DSI Ian Buckells, played by Nigel Boyle


What next for Line of Duty?

Fans eagerly anticipated a Series 7 announcement following the final episode of Series 6 but it was not to be. All eyes are on the BBC and Jed Mercurio as to whether there will be another series of the show, which has been getting record-breaking viewing figures this year.

In an interview with Radio Times, series creator Jed Mercurio says it’s “not entirely clear” if there will be a series 7 of the show.

“We’re in a situation where it’s not entirely clear that there will be a seventh series, “We would hope there could be.

"But we’re having to do our planning coming out of COVID, and a whole bunch of other things around the idea that these things aren’t guaranteed at all now.”


Whatever happens, we hope that there’s another series of the show! In the following video, Sam reacts to the Series 6 Finale. Did you guess the identity of ‘H’ correctly? And what did you think of the final episode?


You can catch Series 1-6 of Line of Duty on BBC iPlayer right now

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