Guest Stars Clare Calbraith as Laura Gabriel Malcolm Storry as Maurice Crace Ace Bhatti as Commander Khokar Agni Scott as Alison Freddie Fox as Ratallack Christopher Adamson as Richards Sasha Behar as Laing Rachel Bavidge as IVF Clinic Nurse Lloyd McGuire as Customs Clerk Nathan Osgood as Austin Lessing Philip Ralph as Evidence Room Clerk Ciaran Dowd as Hotel Receptionist Frank Dunne as Ralph MacLaverty