Line of Duty is about to broadcast its hotly anticipated finale this weekend as fans are hoping to finally find out the identity of the mysterious 'H'.Viewers have been scratching their heads for years as officers have been trying to identify 'H' throughout the six seasons of the BBC police drama.Show creator Jed Mercurio has now dropped a 'H' bombshell ahead of the final episode.During BBC podcast 'Obsessed with...
Line of Duty', he hinted that the mystery criminal could be a member of AC-12 as he hinted "sometimes our heroes let us down".Former cast member Craig Parkinson said: "I've had sleepless nights.
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