With time running out, AC-12 attempt to unmask ‘H’, the Fourth Man – or Woman – commanding the network of corrupt officers behind the murder of Gail Vella.
But sinister and powerful forces appear intent on orchestrating a cover-up.
- Director – Jennie Darnell
- Producer – Ken Horn
- Writer – Jed Mercurio
Cast
- Adrian Dunbar as Hastings
- Amy De Bhrún as Steph
- Andi Osho as Gail
- Anna Maxwell Martin as Carmichael
- Anneika Rose as Farida
- Claire-Louise Cordwell as Leland
- Gregory Piper as Ryan
- Kelly Macdonald as Jo
- Laura Elphinstone as Brandyce
- Maria Connolly as Merchant
- Martin Compston as Steve
- Nigel Boyle as Buckells
- Owen Teale as Osborne
- Perry Fitzpatrick as Lomax
- Peter De Jersey as Rossport
- Rosa Escoda as Amanda
- Shalom Brune-Franklin as Chloë
- Tommy Jessop as Terry
- Vicky McClure as Kate
The series finale of Line of Duty airs on BBC One at 9pm
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