(Sienna Guillory): A potential love interest for Luther.
Luther enters Stark’s lair, swipes his own file, and warns Stark that he will "take him down harder and faster" if Stark persists. Luther 3x2
( Warren Brown ): Luther's loyal partner who must decide whether to testify against him. (Sienna Guillory): A potential love interest for Luther
(David O'Hara): The IA officer determined to dismantle Luther’s career. Guide to Key Scenes swipes his own file
Luther’s chilling interview with William Carney reveals the killer's motives and the connection to the cold case.
In the second episode of Luther Season 3, DCI John Luther investigates a series of "copycat" murders while dealing with an internal affairs investigation designed to bring him down.
( Idris Elba ): The brilliant but embattled detective.