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