Line of Duty fans convinced Marcus Thurwell is still alive after spotting clue

*Major spoilers for Line of Duty episode six ahead*

Line of Duty viewers suspect that the death of a character in episode six was not all that it seemed.

*Major spoilers ahead – you have been warned*

During Sunday (25 April) night’s episode of the BBC crime drama, AC-12 seemed to be getting closer to discovering who is running the organised crime group.

While interviewing Joanne Davidson (Kelly Macdonald), it was revealed that the unknown user from the OCG who had told her to kill Kate Fleming (Vicky McClure) had been traced to an IP address based in Spain.

This is where Marcus Thurwell (James Nesbitt), a retired police officer who had fled the country in 2015, was also based. You can find out more about Thurwell’s character here.

In the final moments of the episode, local authorities raided the house where Thurwell was believed to be staying, but found only the corpses of a man and a woman inside, declaring Thurwell dead.

However, some viewers were less convinced, with many claiming that the grainy bodycam footage meant it would be hard to prove that Thurwell’s body was the one discovered.

“There’s no way James Nesbitt would only appear in #LineofDuty as a corpse,” one fan theorised, adding: “Marcus Thurwell is well and truly alive.”

In addition, many fans suggested that one of the police officers taking part in the raid looked suspiciously like Nesbitt, suggesting that Thurwell had managed to infiltrate the Spanish police too.

One tweet read: “Erm. Why does this chap look just like Marcus Thurwell??! (Actor: James Nesbitt).”

“That is Jimmy Nesbitt’s eyes. He is not dead, he is the Spanish police guy,” another fan wrote.

“100% this is Thurwell by the way!” one tweet read, while another fan concurred: “That is Marcus Thurwell change my mind…”

Line of Duty series six concludes Sunday 2 May at 9pm on BBC One.