Amid all the fan theories as to the identity of H on Line of Duty, bookies are setting out the odds - with Patricia Carmichael 2/1 favourite, while Ted Hastings is third favourite at 8/1.
Betfair spokesman Sam Rosbottom said: "Line of Duty fans have been obsessed with finding out who H is for years - and mother of god, it is the show's current big baddie Patricia Carmichael who is leading the way in the betting at 2/1, closely followed by Chief Constable Philip Osborne at 4/1.
"While question marks on Ted Hastings for a number of series has him in third favourite at 8/1, we haven't ruled out the ultimate twist of Kate Fleming in fact being part of OCG all along - while it is just 4/1 for H to be someone we have not yet encountered as the show reaches its climax next week."
Who is H/The Fourth Man odds from Betfair
Patricia Carmichael: 2/1
Philip Osborne: 4/1
Ted Hastings: 8/1
Marcus Thurwell: 11/1
Jo Davidson: 14/1
Andrea Wise: 14/1
Ian Buckells: 16/1
Kate Fleming: 20/1
Steve Arnott: 33/1
None of the above/unknown person: 4/1
