Jerome Flynn Detective Sergeant Bennet Drake Actor MyAnna Buring Long Susan Actor Adam Rothenberg Captain Homer Jackson Actor Charlene McKenna Rose Erskine Actor Lucy Cohu Guest Star Killian Scott Guest Star Matthew Lewis Guest Star David Warner Guest Star David Threlfall Guest Star Barbara Adair Guest Star Ian Gelder Guest Star Matthew Macfadyen Detective Inspector Edmund Reid Actor Anna Koval Guest Star Justin Avoth Guest Star Benjamin O'Mahony Guest Star Andrew Brooke Guest Star Jonas Armstrong Guest Star Derek Riddell Guest Star Clare Foster Guest Star Karl O'Neill Guest Star Anna Burnett Guest Star Izzy Meikle-Small Guest Star Michael Liebmann Guest Star Ed Hughes Guest Star Stewart Scudamore Guest Star Michael Ford-FitzGerald Guest Star Ronny Jhutti Guest Star Greg Brenman Executive Producer Will Gould Executive Producer Simon Vaughan Executive Producer