LINE OF DUTY: ANNA MAXWELL MARTIN RETURNS THIS WEEKEND

Bafta award-winner Anna Maxwell Martin (Motherland, Bleak House, And Then There Were None) will return to Line of Duty as Detective Chief Superintendent Patricia Carmichael from Sunday’s episode, which will air on BBC One and BBC iPlayer at 9pm.

Viewers will remember no-nonsense DCS Carmichael from series five, where she was brought in as an independent investigator from AC-3 after suspicions mounted over the integrity of Superintendent Ted Hastings.

Now with Ted’s forced retirement looming, is Carmichael in position to take control? And with the restructure of the anti-corruption units, is this the end of AC-12?

Anna Maxwell Martin says: “Pat’s back, I can’t remember what she’s doing there, nor would I be allowed to blab, but suffice to say she’s got some new clobber and she’s ready to bust some balls."

Line of Duty airs on Sunday nights at 9pm on BBC One and BBC iPlayer. Series one to five and series six so far are available on BBC iPlayer.