DSU George Stark and DS Erin Gray continue their obsessive pursuit of Luther, trying to turn DS Justin Ripley against him.
Luther’s budding romance with Mary Day is repeatedly interrupted by the demands of the investigation. Key Characters & Cast Luther 3x2
( Warren Brown ): Luther's loyal partner who must decide whether to testify against him. DSU George Stark and DS Erin Gray continue
In a pivotal moment, Luther listens to Ripley’s recorded statement and realizes his partner defended him despite the pressure from IA. swipes his own file
( Kevin Fuller ): The mute, depraved killer acting as Carney's disciple.
Luther enters Stark’s lair, swipes his own file, and warns Stark that he will "take him down harder and faster" if Stark persists.