Idris Elba Luther Actor, Associate Producer, Associate Editor Warren Brown Justin Ripley Actor Ruth Wilson Alice Morgan Actor Dermot Crowley Martin Schenk Actor Michael Smiley Benny Deadhead Actor Nikki Amuka-Bird Erin Gray Actor Sienna Guillory Mary Day Actor David O'Hara George Stark Actor Rachel Hankey Emily Hammond Guest Star Rupert Procter Terrence Conran Guest Star Kevin Fuller Paul Ellis Guest Star Shaun Mason Sean "Beanie" Beamish Guest Star Georgina French Natalie Green Guest Star Lucian Msamati Ken Barnaby Guest Star Oliver Stark Shaun Butler Guest Star Simon Wilson Dr. Joe Green Guest Star Maria Miles Tessa Barnaby Guest Star Sasha Behar Dani Lane Guest Star Selva Rasalingam Craig Lane Guest Star Elliot Cowan Tom Marwood Guest Star Neil Cross Writer Phillippa Giles Executive Producer Leila Kirkpatrick Line Producer Katie Swinden Producer Sam Miller Director Farren Blackburn Director