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 David Threlfall Guest Star Killian Scott Guest Star Matthew Lewis Guest Star Benjamin O'Mahony Guest Star Anna Burnett Guest Star Anna Koval Guest Star Jonas Armstrong Guest Star Sonya Cassidy Guest Star Jamie Ballard Guest Star Charley Palmer Rothwell Guest Star Jon Øigarden Guest Star Billy Seymour Guest Star Robert Donnelly Guest Star Noelle Brown Guest Star Greg Brenman Executive Producer Will Gould Executive Producer Simon Vaughan Executive Producer