21/04/2017 11:24 BST | Updated 21/04/2017 11:28 BST

'Line Of Duty Will Have To Change In Series 5,' Star Vicky McClure Tells Graham Norton

'Line of Duty' is currently on Series 4.

‘Line of Duty’ star Vicky McClure has said there will have to be some changes to the hit series if her character is still around for the next one.

Vicky has played Kate Fleming, an anti-corruption officer frequently required to go undercover in the hit drama, currently in the middle of Series 4.

She told Graham Norton during her appearance on his chat show (to be screened tonight): “You can only be undercover so often, so if I am in Series 5 there will have to be some changes.”

'Line of Duty' regulars include Martin Compston, Adrian Dunbar and Vicky McClure

There are two more episodes to go in the current series, which has seen the show move from BBC Two to BBC One, but Vicky resisted Graham’s request to spill any beans, including whether her character Kate makes it in one piece all the way to the final credits.

Writer Jed Mercurio is celebrated for killing off some of his lead characters when viewers least expect it, but Vicky told Graham: “I am definitely in next week’s episode. So much happens in the last two hours, it’s great.”

Vicky revealed that the show’s six episodes are filmed in two sets of three, which helps the actors learn their intensive interrogation scene dialogues for which the series is celebrated.

“I think filming all six in one go would be overwhelming as there is so much to learn - it would be ‘lines and lines of duty!’”

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Brendan O'Carroll, Vicky McClure, Graham Norton, Rob Brydon and Harry Styles join Graham Norton tonight on BBC One

Series 4 stars the show’s regulars - Adrian Dunbar, Martin Compston alongside Vicky - with the series antagonist Thandie Newton. Last week’s episode saw Thandie’s DCI Roz Huntley turn the tables on AC-12, accusing its chief of sexism and fabricating evidence in pursuit of a conviction.

Vicky appears with fellow guests Rob Brydon, Harry Styles and Brendan O’Carroll on ‘The Graham Norton Show’ on BBC One at 10.35pm. ‘Line of Duty’ continues on BBC One at 9pm on Sunday.  'Line Of Duty Will Have To Change In Series 5,' Star Vicky McClure Tells Graham

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