Jed Mercurio has said he has always known who “H” is in Line Of Duty – but is open to changing the ending of the police drama.
The identity of the character is yet to be revealed in series five, which has been the most-watched show of 2019 so far.
The show’s creator told the BFI & Radio Times Television Festival: “I suppose if I had an idea later on that was even better then, yeah, of course I would change it.
“Because you want it to be as good as possible and surprising and so forth.”
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Jed, who also created Bodyguard, said he deliberately used names that could be turned into H, creating a series of red herrings in the show.
“Sometimes there were characters whose name could be corrupted or nicknamed into being an ‘H’ if I wanted to,” he said.
“Some of the characters were given names where they could have been revealed as having an H’ connection if it was required.”
Viewers are hoping to find out the identity of ‘H’ in the current series, with many speculating it could be Superintendent Ted Hastings – the head of anti-corruption unit AC-12.
The police drama, which first aired in 2012, has been commissioned for another series, but Jed admitted that he has not started writing it yet.
“We are not going straight into series six, we don’t shoot them back to back,” he said.
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“What we have always done, even though we’ve had two series commissioned, three and four, four and five, it’s helpful to the process that we are allowed time for the series to go out.
“Then we can take stock of audience reaction and that’s really helpful to us, the stories have resonated.
“Those help us plan ahead but we’re going to take stock after series five.”
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