As is the tradition with Line of Duty, there will be new featured stars in season five. This is England star Stephen Graham is "Balaclava Man" John Corbett, and Rochenda Sandall is Lisa McQueen. What do we know about them so far?
Well, they're "two pivotal figures in a deadly organised crime group". These two are "known to have links with corrupt police offers and [are] suspected to be under direct command of the shadowy figure known only as 'H'".
Joining these new faces are Taj Atwal from In the Club as PC Tatleen Sohota, and Richard Pepple from Motherland as PS Kyle Ferringham. Bohemian Rhapsody's Ace Bhatti, Doctor Foster's Elizabeth Rider, Susan Vidler Shetland's, and Hidden's Sian Reese-Williams will also be playing new, as yet unnamed characters.