Line of Duty Season 7: Martin Compston, Vicky McClure and Adrian Dunbar Return
Martin Compston, Vicky McClure and Adrian Dunbar are all back for Line of Duty Season 7, according to first-look images and cast details published by Deadline on 12 November 2026. Compston returns as Steve Arnott, McClure as Kate Fleming and Dunbar as Ted Hastings, the three officers at the centre of the police drama.
The new run is set inside a changed organisation. The anti-corruption team now works within the Inspectorate of Professional Standards, which replaces AC-12, the unit the show has long followed. The change gives the investigators a new name, and the officers they chase a new set of rules to work within.
The season's main guest lead is Robert Carlyle, who plays Specialist Rifle Officer Shaun Massie. Mark Bonnar, Owen Teale, Perry Fitzpatrick and Christina Chong also return. Among the new cast members are David Calder, Steven Elder, Dominic Mafham, Aimee Powell and Naomi Yang.
The anti-corruption team, referred to as TO-7, is led on screen by a new set of faces. Laura Aikman plays DC Paula Beckman, Levi Brown plays DC Luke Tobin and Amy Leigh Hickman plays DC Nira Rashid.
One storyline centres on DI Dominic Gough, a commanding officer. Tom Weston-Jones plays him. Gough is accused of being a sexual predator, and the allegation sits at the heart of the investigation the team takes on this season.
Behind the camera, Jed Mercurio wrote and created the season and directed episodes four to six. Jennie Darnell directed the first three episodes. The series is produced by World Productions in association with ITV Studios, which handles international distribution, meaning it sells the programme to broadcasters and platforms outside the production's home market.
For viewers, the announcement is a reminder of who is coming back and who is new. For the crew, it marks the point where a season moves from scripts and casting into filming and post-production. The first-look images give the first visual sense of the new run, and the cast list shows how much of the original team has been kept together.
Anyone who has followed the show will notice the mix of familiar names and fresh ones. The returning trio carry the show's central investigation, while Carlyle and the newcomers take on the roles that drive the new plot.
