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 Amanda Hale Emily Reid Actor Anna Burnett Guest Star David Threlfall Guest Star Jonas Armstrong Guest Star Matthew Lewis Guest Star Benjamin O'Mahony Guest Star Jake Mann Guest Star Lucy Cohu Guest Star Anna Koval Guest Star Michael Liebmann Guest Star David Warner Guest Star Killian Scott Guest Star Greg Brenman Executive Producer Will Gould Executive Producer Simon Vaughan Executive Producer