Line of Duty is steaming towards its nail-biting conclusion with just two episodes of the thrilling BBC drama left.
And fans of the show have been desperately trying to work out who the elusive villain 'H' is, with the finger currently pointed firmly at Superintendent Ted Hastings.
However, with the speculation continuing to mount, the show's creator Jed Mercurio has revealed that 'less than a dozen' people know the true identity of 'H'.
Are you guilty, fella? Line of Duty writer Jed Mercurio reveals 'less than a dozen' people know the real identity of 'H' as fans continue to suspect Ted Hastings
Sunday's explosive fourth episode saw a series of incidents that steered the finger of suspicion at Adrian Dunbar's character, while others have theorised that he could actually be the good guy.
And amid this, Jed has admitted that he 'can't wait' for the truth to be out in the open as only a small amount of people know the real identity.
He told The Mirror: 'You will be reassured to know that I do actually know who H is and very few of us do.
'The number of people who genuinely know right now is probably less than a dozen and I’m looking forward to the day when it can be measured in millions.'
Suspect: Staunch fans of the show have been desperately trying to work out who the elusive villain 'H' is, with the finger currently pointed firmly at Superintendent Hastings
Jed has littered several red herrings throughout all five series, with several characters having names that could be linked to 'H'.
However, fans are divided as to whether Hastings is the real culprit or is secretly working to bring down 'H'.
Jed then hinted that viewers should keep believing in the character as he 'believes in doing the right thing'.
Secretive: 'The number of people who genuinely know right now is probably less than a dozen and I’m looking forward to the day when it can be measured in millions'
He continued: 'I think I do write characters that have certain characteristics and one of them is the characters that we are meant to get behind, Ted and all the AC-12 characters who aren’t baddies.'
The writer's admission comes as last week viewers watched the mysterious boss of the organised crime gang misspell 'definitely' while talking via an online chat to John Corbett.
And while many thought it was simply a spelling blunder, when Ted typed 'definitely' with an A during a police hack in Line of Duty on Sunday, fans were left convinced the AC-12 Superintendent was in fact villain H.
Corrupt? When Ted misspelt during a police hack in Line of Duty on Sunday, fans were left convinced the AC-12 Superintendent was in fact villain H
However others theorised Hastings, had placed Lisa McQueen as an undercover officer and was using the misspelling as a code word.
During episode four, police managed to infiltrate 'H''s computer and had prepared a series of responses in keeping with the notorious gang leader's vocabulary.
But Kate Fleming and Steve Arnott were left surprised when Ted decided to ignore the pre-composed answers to tell Lisa and John to 'bring it to a close'.
During the exchange, Ted typed: 'We pulled off the biggest
