Paapa Essiedu George Actor Anjli Mohindra Archie Actor Rudi Dharmalingam Shiv Actor Caroline Quentin Wes Actor Charly Clive Sarah Actor Elaine Tan Zhang Actor Tom Burke Rebrov Actor Salóme Gunnarsdóttir Greta Actor Lukas Loughran The Dane Actor Brian Gleeson Ross Actor Vinette Robinson Janet Actor Sam Troughton Dr Samson Actor Zoe Telford Dr Kitty Gray Actor Colin Salmon Robin Lerner Actor Royce Pierreson Bryson Actor Rosie Jones Dr Morgenstein Actor Dan Li Dr Li Actor Lorne MacFadyen Cormac Actor James Atherton Michael Actor Joseph Steyne Morris Actor Safia Oakley-Green Becky Actor Carl Tibbetts Director Joe Barton Writer, Executive Producer Johnny Capps Executive Producer Marco Kreuzpaintner Executive Producer Julian Murphy Executive Producer Benjamin Greenacre Producer