Stephen Graham as Elias Mannix
Shira Haas as DC Maplewood
Amaka Okafor as DS Hasan
Jacob Fortune-Lloyd as DS Whiteman
Kyle Soller as DI Hillinghead
George Parker as Henry Ashe
Tom Mothersdale as Gabriel Defoe
Emily Barber as Kathleen
Anna Calder-Marshall as Lady Agatha Harker
Michael Shaeffer as CI Hayden
Greta Scacchi as Lady Polly Harker
Synnøve Karlsen as Polly