Guest Stars Derek Hutchinson as Phillip Haynes Teilo Le Masurier as Rhys Nicholas McGaughey as Superintendent Caroline Berry as Margaret Haynes Jonathan Nefydd as Simon the Prophet Andria Doherty as Grace Richard Mylan as Lekan Tim Downie as Roger Deburge Mark Henry Davies as Gordius Guard Hywel Simons as Builder Tim Louis Raghunathan as Gordius Analyst Edward Llewelyn as Local Police Officer Terema Wainwright as Nurse Rita Manuel Klein as Jonas Caroline Sheen as Mari Ranjit Krishnamma as Mithal Claire Cage as News Reporter