Guest Stars Richard Durden as Conor Hodgson Daniel Weyman as Max Thorndyke Julia Haworth as Rosie Chamberlain William Ash as Major Mark Sealy Adelle Leonce as D.C. Lucy Vail Ben Bailey Smith as Lieutenant Colonel Ben Carmichael Graham Turner as Arthur Simpson Clare Higgins as Professor Katherine Dukes Tina Chiang as Simone Taylor Ash Tandon as DI Karl Guyatt Will Stevens as Private John Sealy Robert East as Henry Young Daniel Stewart as Sergeant Haring Elizabeth Boag as Paramedic
