The sixth series of Line of Duty will begin on March 21, the BBC confirmed.
Martin Compston, Vicky McClure and Adrian Dunbar will once again play their part in the Jed Mercurio directed which shows corruption within the police force.
They will be joined by Kelly Macdonald, who will play the DCI (Detective Chief Inspector).
Longest Series To Date
The latest series of popular crime drama will feature seven episodes, making it the longest series so far.
The second series is currently being repeated on BBC One, while all of the past five seasons can be viewed on BBC iPlayer.
The exploits of the fictional AC-12 unit have gripped audiences ever since the BBC drama first hit screens in 2012.
Lennie James, Keeley Hawes and Thandie Newton are among the names of stars who have played their most complex characters in antagonist roles.
More than nine million viewers watched to watch the final episode of the fifth series of Line Line Duty when it aired in May 2019.
The filming of the sixth series was suspended in Northern Ireland last year due to the coronavirus pandemic.
The new series will see Compston, McClure and Dunbar return to their roles as Steve Arnott, Kate Fleming and Superintendent Ted Hastings respectively.
Shalom Brune-Franklin, who was spotted last year on BBC One in the Roadkill political series, will play Chloe Bishop, in addition to the AC-12 squad.
Trainspotting star Macdonald will play DCI Joanne Davidson, the senior investigating officer on an unsolved murder case whose conduct attracts the attention of the Anti-Corruption unit.
Mercurio also wrote hit drama Bodyguard and is an executive producer on Bloodlands, a Northern Ireland-set thriller starring James Nesbitt that is currently running on BBC One.
Line of Duty kicks off on BBC One on Sunday 21 March at 21:00 GMT.