The cast of Line Of Duty knew the show had one more season in it, Martin Compston has said, as he gets set to film its seventh series.

The Scot, who plays anti-corruption officer Steve Arnott, said he is “excited” for the show to “go out on a high”.

The actor spoke to the Press Association as he promoted his new Paramount+ thriller series The Revenge Club, which follows a divorce support club plotting revenge.

But it also came after the BBC confirmed Line Of Duty is set to return.

Compston said he had been ordered to stay tight-lipped about what the new series will bring – but he said that is part of the allure.

“I don’t think people want to know,” he said.

“It’s kind of weird. People always go, ‘Is it this?’ and then say ‘Don’t tell me. Don’t tell me’.

“I think people love the surp

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