Tchéky Karyo Julien Baptiste Actor David Morrissey Sam Webster Actor Keeley Hawes Gemma Webster Actor Roger Allam Brigadier Adrian Stone Actor Laura Fraser Eve Stone Actor Anastasia Hille Celia Baptiste Actor Lia Williams Nadia Herz Actor Abigail Hardingham Alice Webster Actor Jake Davies Matthew Webster Actor Isabelle Barth Guest Star Florian Bartholomäi Guest Star Daniel Ezra Guest Star Harry Williams Writer Jack Williams Writer Ben Chanan Director Julian Stevens Producer