Every Line of Duty suspect Jo Davidson could be related to as DNA bombshell leaves fans reeling

LINE of Duty loves to leave fans wanting more and the latest episode has left them pulling their hair out.

The fourth episode of series six ended with DI Steve Arnott (Martin Compston) being given a file revealing a DNA match to DCI Joanne Davidson after samples were taken from her former home.

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Line of Duty fans are desperate to know who was matched to Jo Davidson’s DNA in the latest episodeCredit: BBC

He immediately took the paperwork into show his boss, Superintendent Ted Hastings, and told him the DNA results had identified a surprising blood relative.

Ted – played by Adrian Dunbar – looked at the results before stating his catchphrase: “Mother of God”.

However, the show then cut to the credits before viewers could make out the wording on the document and so they now have to wait a whole week to find out who Jo’s important secret relative could be.

It didn’t stop them immediately sharing their predictions and theories on Twitter though, so here are the main contenders.

TED HASTINGS

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Could Ted Hastings have seen his own name on the document?Credit: BBC

The Superintendent could have seen his own name on the paperwork following his relationship with Anne-Marie McGillis, a police informant in Northern Ireland with whom Ted had a relationship.

Could Jo be the daughter Ted never knew he had?

One Twitter user believes so, writing: “She’s John Corbett’s sister, Ann-Marie McGillis’ daughter and her dad is Big Ted #LineOfDuty.”

Another added: “Ted Hastings is John Corbett’s Dad. Jo Davidson & John Corbett are long lost siblings? So Ted Hastings is also Jo Davisson’s Dad?Am I way off?”

JOHN CORBETT

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A number of fans think Jo is related to ‘bent copper’ John Corbett

DI John Corbett was the central “bent copper” in series five and was played by Stephen Graham.

John had his throat slit after he fell for a trap laid by the Organised Crime Group, and his name is also connected to Anne-Marie McGillis, who turned out to be his birth mother.

Could he also have been Jo’s brother?

One Line of Duty fan said: “Right #LineOfDuty please tell me I’m not the only one that thinks John Corbett and Jo Davidson are related. Thinking face Brother and sister, cousins maybe. Head is fried.”

Another added: “John Corbett is Davidsons brother. Hastings rumoured to have had an affair with Corbett’s mum. Is Hastings Jo’s Dad.”

TOMMY HUNTER

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Deceased leader of the OCG Tommy Hunter is another prime candidate

Tommy Hunter was the leader of the Organised Crime Group and a paedophile before he was killed in series two.

One viewer wrote on Twitter: “Davidsons blood relative is Corbett or Tommy Hunter imo!”

Another added: “I think that Jo’s blood relative is Tommy Hunter, they are both Scottish #LineOfDuty.”

A third tweeted: “I think Jo is related to Tommy Hunter. She’s not Scottish for nothing. #LineOfDuty.”

DEREK HILTON

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Fans think someone like Derek Hilton would be less obviousCredit: BBC

Chief Superintendent Derek Hilton was secretly affiliated with organised crime before he was shot in the mouth in a staged suicide orchestrated by the OCS.

Some fans think Jo’s relatve won’t be as obvious as being John or Ted and have Derek in the hot seat.

One wrote: “#lineofduty my money is next week we will see the left hand side of the page and it will be someone completely unexpected. (Derek Hilton).”

Another added: “#lineofduty everyone will think that it’s Tommy as per the Scottish accent but I reckon Osborne is to easy so I’m going with Derek Hilton as her dad.”

MIKE DRYDEN

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Mike Dryden’s Scottish accent could also be another clue to who Jo’s relative isCredit: BBC

Jo’s Scottish accent has also lead some fans to think former Deputy Chief Constable Mike Dryden could be her dad.

Mike is currently serving a suspended sentence for perverting the course of justice.

One viewer wrote on Twitter: “@Line_of_duty surely Jo Davidson is related to DCC Mike Dryden Two Scottish folk, he was corrupt in #LineOfDuty.”

Another added: “It’s Mike Dryden isn’t it? #LineOfDuty”.

A third tweeted: “I see sibling similarities? And they’re both Scottish? Flag of Scotland Is Mike Dryden? #LineOfDuty.”

Line of Duty continues at 9pm on Sunday, April 18th on BBC One.