Series Guide · Line of Duty
The Best Series of Line of Duty, Ranked
Every series of Line of Duty brought in a different guest lead as the officer under investigation, and each run built on the last toward the show's central mystery. Series 1 is the pick many longtime fans call the best of the lot — tight, tense, and fully formed from episode one.
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The Best Series, Ranked
Series 1 (2012)
Lennie James leads as DCI Tony Gates in a tight five-episode run that introduced AC-12, Steve Arnott, and Kate Fleming. Everything the show became famous for is already fully formed here — many longtime fans still call it the show's best.
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Keeley Hawes' performance as DI Lindsay Denton drew widespread critical acclaim and multiple award nominations for the series.
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Kelly Macdonald led as DCI Joanne Davidson in the series that brought the show's long-running "H" mystery to a close, closing out the show's original run.
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Thandiwe Newton joined as DCI Roz Huntley in the first series to move from BBC Two to BBC One's primetime slot.
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