Guest Stars Toheeb Jimoh as Marcus Pete MacHale as Leon Ursula Holliday as Cass Stewart Anneika Rose as Natalie Anson Boon as Anton Garin Milly Thomas as Sara Hoyt T'Nia Miller as Charlie Morris Steven Elder as Doctor (Asylum) Milo Twomey as Scientist Alex McNally as Photographer Neran Persaud as Head of Indian Feed Beverly Longhurst as Pam (Call Centre Agent) Robert Goodman as Johnny Joshua Pulleyn as Hooded Figure
