Guest Stars Kye Murphy as Connor Judge Kahl Murphy as Connor Judge Anna Burnett as Mathilda Reid Jonas Armstrong as Nathaniel Benjamin O'Mahony as Det. Sgt. Frank Thatcher Anna Koval as Rachel Castello Michael Liebmann as Theakston Justin Avoth as Isaac Bloom Derek Riddell as Superintendent Constantine Ed Hughes as Dr. Carlyle Probyn Ian Gelder as Joseph Chamberlain Izzy Meikle-Small as Valerie Freeman Michael Ford-FitzGerald as Frederick Cotter Andrew Brooke as Roy Teague Stewart Scudamore as Risaldar-Major Haroun Al-Quadir Steve Cash as Train Conductor Isaac O'Sullivan as Young Boy Clare Foster as Eleonora Freeman Ronny Jhutti as Imran Hafeez Karl O'Neill as Frederic Ramuz Emer O'Grady as Kay Teague Barbara Adair as Queen Victoria