Where you ve seen Line of Duty cast before - from Inbetweeners to EastEnders villain Mirror 17 hrs ago Kyle O Sullivan
With eagle-eyed Line of Duty fans pausing every scene to work out what s going on there is nothing they are going to miss.
From barely visible clues about the identity of H to subtle gestures that hint at corruption - armchair detectives are determined to work out all the twists and turns.
While casting their eyes over every intimate detail they have also paid very close attention to the cast.
This week came the shocking realisation that DS Buckells was in a very famous scene from hit teen comedy The Inbetweeners.