John Luther is a fictional character from the British television series Luther, created by Neil Cross. He is portrayed by actor Idris Elba and is a dedicated detective in the London police force. Known for his brilliant mind and intense personality, Luther often finds himself drawn into complex criminal cases that challenge his moral boundaries. The series first premiered in 2010 and has received critical acclaim for its writing and performances. Luther explores themes of justice, obsession, and the psychological toll of crime-solving. The character's struggles with his personal life and professional duties add depth to the gripping narrative.