Idris Elba

as DCI John Luther

Dermot Crowley

as DSU Martin Schenk

Michael Smiley

as Benny "Deadhead" Silver

Warren Brown

as DS Justin Ripley

Ruth Wilson

as Alice Morgan

Paul McGann

as Mark North

Nikki Amuka-Bird

as DCI Erin Gray

Indira Varma

as Zoe Luther

Saskia Reeves

as DSU Rose Teller

Steven Mackintosh

as DCI Ian Reed