Freddie Fox

as Jeremy Bamber

Alexa Davies

as Julie Mugford

Mark Stanley

as Colin Caffell

Mark Addy

as DS Stan Jones

Stephen Graham

as DCI Thomas ‘Taff' Jones

Gemma Whelan

as Ann Eaton

Alfie Allen

as Brett Collins

Cressida Bonas

as Sheila Caffell

Amanda Burton

as June Bamber

Nicholas Farrell

as Nevill Bamber