The third series of Line of Duty, consisting of six episodes, premiere...wikipedia - 03 May 2021
The third series of Line of Duty, consisting of six episodes, premiered on 24 March 2016 on BBC Two. The series follows Superintendent Ted Hastings (Adrian Dunbar), DS Steve Arnott (Martin Compston) and DC Kate Fleming (Vicky McClure) as they lead an investigation into the corrupt actions of Sergeant Danny Waldron (Daniel Mays). Supporting cast includes Craig Parkinson as DI Matthew "Dot" Cottan and Polly Walker as Gill Biggeloe. Keeley Hawes reprises her role as DI Lindsay Denton.