Line of Duty fans have come up with a theory about who Jo Davidson thought her dad was. In last week's explosive episode, Jo, played by Kelly Macdonald, found out that her biological dad was actually her uncle, OCG boss Tommy Hunter, who raped her mum - his sister - when they were teenagers.
During the interview, Jo said she'd been told her father was a bent copper but refused to say who, and she had no idea about the truth until it was uncovered by DNA on the police database.
And fans are convinced they've worked out who she was told her dad was — Marcus Thurwell, who is played by James Nesbitt. One tweeted: "Jo Davidson thought Marcus Thurwell was her real dad and he's not really dead, he's alive and head of the OCG and is the 4th man
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