Guest Stars Carolina Valdés as Nadiuska De Sancha Rebecca Scroggs as Ari Branson Lu Corfield as Sgt Tania Walsh Alec Newman as Joe Baker Faith Alabi as Layla Backhurst Stephen Boxer as Dr. Roger Gunnislake Daniel Adegboyega as Marcus Backhurst Ernest Kingsley Jr. as Luke Lucy Phelps as Saskia Cobb Joséphine De La Baume as Julia Giroux Antony Byrne as Jim Telby Jayne McKenna as Janet Telby Ellis George as Callie Backhurst Shamail Ali as Babbar Seham Aar as Sia Amina Koroma as Kumba
