Guest Stars Clare Calbraith as Laura Gabriel Malcolm Storry as Maurice Crace David Schofield as Sergeant Foley Freddie Fox as Ratallack Sean Gilder as Robert Beatty Ace Bhatti as Commander Khokar Agni Scott as Alison Christopher Adamson as Richards Nicholas Jones as Commander Penney (Retired) Sasha Behar as Laing Rachel Bavidge as IVF Clinic Nurse Charles Kay as Sir Richard Halton Andrew Buckley as Scientist Simon Chandler as Consultant
