Line of Duty cast: full list of returning and guest stars | Radio Times
Your essential guide to the cast of Line of Duty.
www.radiotimes.comSupporting cast feature across episodes, listed with background team in full cast listings. New and recurring faces for several seasons, including Steve Arnott, Kate Fleming, Ted Hastings, plus major roles. Current overviews describe new appearances in later seasons, as well as detailed cast lists and character descriptions. Non-speaking roles listed under Extras in season entries. Line of Duty 2019 shows background and supporting credits across episodes.