Who is H in Line of Duty? We rate the most popular theories - from Philip Osborne to Kate Fleming yorkshirepost.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yorkshirepost.co.uk Daily Mail and Mail on Sunday newspapers.
Line Of Duty s explosive series six finale is set to kick off on Sunday night, with avid fans (and AC-12 themselves) desperate to discover the identity of H .
And ahead of the show, former Line Of Duty star Craig Parkinson, who played OCG Caddy Matthew Dot Cottan, predicted that the final episode of the series will break hearts .
Meanwhile Craig, 45, praised the show makers for delivering a great production after Covid-19 forced them to halt filming last year, and hailed the show as one of the most iconic dramas in years.
Exciting stuff: Former Line Of Duty star Craig Parkinson, who played OCG Caddy Matthew Dot Cottan, predicted that the final episode of the series will break hearts (pictured in character)
Line of Duty star Martin Compston says he s on board with wild fan theory
Martin, who plays Steve Arnott on the iconic BBC police drama, took to The Jonathan Ross show to admit he s on board with one particularly wild fan theory pertaining to series four
Updated
Martin said he was on board with the theory (Image: ITV)
Daily Star s Inside Hot TV newsletter sees Ed Gleave send you telly s hot takes straight to your inbox every SundayInvalid EmailSomething went wrong, please try again later.
Yes, keep me in the know!
When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice.
BBC Line of Duty series 6 finale: Thereâs only one show Iâm interested in. and thatâs Line of Duty
Ahead of the series finale, our reporter explains why Line of Duty is the perfect police procedural
The best team: played by actors Vicky McClure, Adrian Dunbar and Martin Compston (Image: BBC/World Productions Ltd)
Sign up to our newsletter for daily updates and breaking newsInvalid EmailSomething went wrong, please try again later.
Sign up here!
When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice.
The series six finale of the hugely popular BBC drama airs this Sunday at 9pm
Some 12 million viewers are expected to tune into Jed Mercurio s police crime thriller - with the promise of H finally being unmasked
On social media, people have admitted the show airing tonight - in a 90-minute special - is the highlight of their bank holiday weekend