Line of Duty’s Patricia Carmichael leaves fans convinced she’s H after Morse code interview clue

Line of Duty’s Patricia Carmichael leaves fans convinced SHE’s the fourth man as viewers spot her tapping out ‘H’ in Morse code and acting VERY shady during Jo Davidson’s interview

Line of Duty fans were left convinced that Detective Chief Superintendent Patricia Carmichael is the fourth man after Sunday’s episode.

The officer, played by Anna Maxwell Martin, placed herself at the centre of the action as she ordered Kate Fleming be arrested following the shootout and then tried to shut down Ted Hastings’ questions during a very intense interview of Jo Davidson. 

Some viewers even theorised that Carmichael was trying to send a message during the ‘puzzling’ interview – which also saw Jo discover her paternity despite offering more ‘no comments’ than answers – based on how often she tapped her pen.

Could it be? Line of Duty fans were left convinced that Detective Chief Superintendent Patricia Carmichael is the fourth man after Sunday’s episode

Carmichael was first seen arriving at the scene of last week’s cliffhanger where Kate Fleming and Ryan Pilkington pointed their guns at each other and two shots were heard before the screen went black.

And after finding Ryan’s body with two bullet wounds to the chest and being told by Hastings that Kate has been authorised to carry a concealed weapon, Carmichael declared them ‘armed and dangerous’.

She also caught eagle-eyed viewers attention once Kate and Jo were apprehended by police following a high-speed car chase – as it transpired was made possible after she and the chief gave orders to track all of AC-12s vehicles.

Trying to hide something? The officer, played by Anna Maxwell Martin, tried to shut down Ted Hastings' questions during a very intense interview of Jo Davidson

Trying to hide something? The officer, played by Anna Maxwell Martin, tried to shut down Ted Hastings’ questions during a very intense interview of Jo Davidson

This pivotal bit of information was revealed once Arnott had talked Kate into surrendering and he was going over the events back at headquarters with Hastings.

Explaining that he and Kate have keys to each others cars and houses for when there’s an ‘unexplained disruption to the chain of command’ he was left stunned when Carmichael cruelly revealed Hastings secret and approaching retirement.

However despite all of this already raising suspicion, it was during the intense – and very long – interview of Jo that many viewers decided that Carmichael must be H or at the very least involved with the OCG herself.

The interview saw Jo discover that her uncle Tommy Hunter was actually her father as well, with the officer emotionally revealing that her mother had told her she’d been raped as a teenager and how ‘uncle’ Tommy controlled both of their lives.

Despite Jo finally starting to open up on some points after numerous ‘no comments’, Carmichael repeatedly shut down Arnott and Hastings’ questions whenever they verged on talk of corruption in the force. 

Theories: Some viewers even theorised that Carmichael was trying to send a message during the interview based on how often she tapped her pen

Theories: Some viewers even theorised that Carmichael was trying to send a message during the interview based on how often she tapped her pen

Emotional: Jo Davidson broke down as she discovered her true relationship to Tommy Hunter

Emotional: Jo Davidson broke down as she discovered her true relationship to Tommy Hunter

On fan said Carmicheal’s behaviour here left them thinking she was H, tweeting: ‘That was a tense interview scene. Carmichael didn’t wanna go into any police corruption at all. Jo protecting Kate. All very puzzling.’

Another simply stated: ‘Carmichael absolutely the fourth caddy that interview gave everything away #LineofDuty’ 

While others even theorised that Carmichael was sending out some kind of message during the interview, based on how often she tapped her pen.

Giving orders: Carmichael was seen arriving at the scene of last week's cliffhanger where Kate Fleming and Ryan Pilkington pointed their guns at each other and two shots were heard before the screen went black

Giving orders: Carmichael was seen arriving at the scene of last week’s cliffhanger where Kate Fleming and Ryan Pilkington pointed their guns at each other and two shots were heard before the screen went black

Calling the shots: She demanded the two officers put down their guns after the high-speed police chase

Calling the shots: She demanded the two officers put down their guns after the high-speed police chase

One person wrote: ‘Carmichael tapped her pen 4 times in the interview . . . . = H in morse code.’ 

And another agreed, adding: ‘Carmichael is H she has to be. Why is she tapping the table 4 times? #lineofdutyday #LOD’ 

However one fan suggested that Osborne was H, and Carmichael was actually trying to cover for him, tweeting: ‘Osborne has got to be H, and that’s who Jo thought her father was? 

‘Carmichael shut down the convo everytime Osborne was mentioned. Whoever Jo thought her dad was, that’s H right? Also I can’t hack Ted Hastings being upset like this so I’d appreciate less of that #LineofDuty 

Theories: Fans were quick to declare that Carmichael is H, with some also suggesting the Morse code theory

Theories: Fans were quick to declare that Carmichael is H, with some also suggesting the Morse code theory