Matthew Macfadyen Detective Inspector Edmund Reid Actor Jerome Flynn Detective Sergeant Bennet Drake Actor MyAnna Buring Long Susan Actor Adam Rothenberg Captain Homer Jackson Actor Charlene McKenna Rose Erskine Actor Joseph Mawle Guest Star Killian Scott Guest Star Jonas Armstrong Guest Star Benjamin O'Mahony Guest Star Anna Burnett Guest Star Matthew Lewis Guest Star Lydia Wilson Guest Star Ian Pirie Guest Star Ellie Haddington Guest Star Fionna Hewitt-Twamley Guest Star Conor Lambert Guest Star Greg Brenman Executive Producer Will Gould Executive Producer Simon Vaughan Executive Producer