Guest Stars James Clack as Young Martin Jake Curran as Padraig Pearse O'leary Izabella Urbanowicz as Rosie Demarczyk Françis Renaud as Paul Capoue Nathaniel Spender as Young Jean Héléna Soubeyrand as Clothilde Vincent Riotta as DCI Tom Kendrick Kirsty Dillon as Lorraine Andrew Whipp as Gareth Itoya Osagiede as Efe Obriorah Harry Rafferty as Bent Petrice Jones as Tavoris Will Brown as Building Manager Albie Marber as Nelson's Messenger
