Line Of Duty viewers joke that Theresa May has made a ‘strong and stable cameo’ in series six

Line Of Duty viewers were left very amused after spotting an actress who looked remarkably similar to Theresa May in Sunday night’s episode.   

The hit police drama kicked off its sixth series in typical dramatic style, however it was an actress with shoulder-length grey hair who got some chatting on Twitter

Taking to social media, several people joked that the former Prime Minister, 64, had made a ‘strong and stable’ cameo in the extremely popular show.

Theresa, is that you? Line Of Duty viewers were left very amused after spotting an actress who looked remarkably similar to former Prime Minister Theresa May in Sunday night’s episode

In the scene, the woman is seen stood up and taking notes while DI Kate Fleming [Vicky McClure] and her colleagues listen to a briefing from new character Detective Chief Inspector Joanne Davidson [Kelly Macdonald].

The actress, who is wearing a navy blue cardigan over a smart pink collared shirt, looks serious as she listens to the information in the murder investigation.

Several people commented on the lady’s similarity to Theresa May, with them both having similar hairstyles and smart attire. 

There she is: Several people joked that the former Prime Minister, 64, had made a 'strong and stable' cameo in the show (Theresa May is pictured in 2019)

There she is: Several people joked that the former Prime Minister, 64, had made a ‘strong and stable’ cameo in the show (Theresa May is pictured in 2019)

One viewer wrote: ‘Good to see Theresa May’s keeping busy with a strong and stable cameo in #LineOfDuty’

While another penned: ‘Hello to the Theresa May taking notes in the middle #LineOfDuty’

And a third confused viewer added: ‘What’s Theresa May doing there? #LineOfDuty’

‘Strong and stable’ was a phrase regularly used by May in the lead-up to the 2017 election and has since become popular in memes. 

Reaction: Several people joked about the actress' similarity to Theresa May, with some joking that her appearance was 'the best plot twist yet'

Reaction: Several people joked about the actress’ similarity to Theresa May, with some joking that her appearance was ‘the best plot twist yet’

Line Of Duty delighted viewers with several plot twists on Sunday and even taught a new acronym, with many hilariously mishearing it for something much cruder. 

One of the stand-out new terms which was repeated many times by the cast was CHIS, which stands for Covert Human Intelligence Sources.

However many viewers revealed that they’d be hearing the much cheekier term ‘jizz’ for the majority of the intrigue-filled episode.   

One particular scene with DCI Davidson and DI Fleming saw them repeat the phrase several times with the women asking another officer to ‘help us locate your CHIS’.

One person tweeted: ‘This is the jizz handler?’ while someone else added: ‘Ah it’s CHIS… for half an hour I thought I’d been hearing JIZZ’ 

And another penned: ‘Everytime they said CHIS in that episode, I heard JIZZ. And they said it A LOT. And I couldn’t unhear it!’ 

It's back!u00A0Line Of Duty's hotly anticipated sixth season kicked off with a bang on Sunday night

It’s back! Line Of Duty’s hotly anticipated sixth season kicked off with a bang on Sunday night

Shady? New character DCI Joanne Davidson certainly left her mark on the show

Shady? New character DCI Joanne Davidson certainly left her mark on the show

The first episode of also saw several twists, perhaps most shockingly with the revelation that long-term AC-12 member Kate is now working with a new team.

While chatting to her new gaffer DCI Davidson, Kate says: ‘I got fed upon nicking coppers, I’d rather go after the psycho who murdered Gail [Vella].’

But despite seeming confident in her new role, some viewers were left wondering if all was at it seems and theorised that Kate could still be undercover for AC-12.

While elsewhere Terry Boyle, who was used by the OCG in previous series and famously had a body hidden in his freezer, was reintroduced.

Oops! Several fans joked they'd been hearing the word 'jizz' rather than CHIS during the show

Oops! Several fans joked they’d been hearing the word ‘jizz’ rather than CHIS during the show

The character, who has Downs Syndrome, was arrested after a police raid on an address and mistakingly gave the wrong name to officers when questioned.

His involvement left many fans shocked at the development, with some saying they felt sorry for him being dragged back into the criminal activity. 

Adding to the intrigue, the raid itself also became suspicious as DCI Davidson seemed to be delaying her team’s arrival when she ‘spotted’ a robbery in place.

This potentially shady move tipped her as a ‘bent copper’ for most of the hour-long show but in true Line Of Duty style things got more complex at the end.

DCI Jo was then revealed as being romantically involved with one of her staff, Farida, who had earlier reported her to DS Arnott to look into as being corrupt.

Reappearance: Character Terry Boyle also reappeared in the episode after he was used by the OCG in past seasons

Reappearance: Character Terry Boyle also reappeared in the episode after he was used by the OCG in past seasons