Guest Stars Áine Rose Daly as Sandy Phillips Cherrelle Skeete as Terri Miller Joel Kinnaman as Erik Heller Gianna Kiehl as Jules Allen Chloe Pirrie as Brianna Stapleton Joanna Kulig as Johanna Petrescu Taylor Napier as Chuck Sam Swainsbury as Ethan Williams Gabriel Akuwudike as Max Kaplan Adam Bessa as Abbas Naziri David Avery as Stephen Mannion Trent Garrett as Taylor Mark Bazeley as Robert Gelder Caitlin Innes Edwards as Grant Flora Nicholson as Kenton Léann Hamon as Nadiya Wiebke Frost as Lena Behr Russ Bain as CIA Officer Sanchez Jenn Kirk as Pioneer Doctor Victor Dohlsten as Ryder Klara Cibulova as Zofia Gary Stennette as Utrax Man Klára Lőw as Military Doctor Dániel Tóth as CIA Monitor Leander Vyvey as Male Nurse Michelle Duncan as False Marissa Guy Roberts as Brody Claudia Graf as Orderly Stephanie Brush as Vienna Local