Lesley Manville
as Robina Chase
Jonah Hauer-King
as Harry Chase
Zofia Wichłacz
as Kasia Tomaszeski
Eryk Biedunkiewicz
as Jan Tomaszeski
Julia Brown
as Lois Bennett
Yrsa Daley-Ward
as Connie Knight
Parker Sawyers
as Albert Fallou
Eugénie Derouand
as Henriette Guilbert
Mateusz Więcławek
as Grzegorz Tomaszeski
Ewan Mitchell
as Tom Bennett
Blake Harrison
as Stan Raddings
Helen Hunt
as Nancy Campbell
Sean Bean
as Douglas Bennett
Max Riemelt
as Schmidt
Johannes Zeiler
as Uwe Rossler
Brian J. Smith
as Webster O'Connor
Victoria Mayer
as Claudia Rossler
Grace Chilton
as Joyce Spicer
Ahad Raza Mir
as Rajib
Gregg Sulkin
as David
Miriam Schiweck
as Marga Kühne
Mark Bonnar
as Sir James Danemere
Ceallach Spellman
as Joe Broughton
Arthur Darvill
as Vernon Hunter
Agata Kulesza
as Maria Tomaszeski
Johanna Götting
as Gertha
Agnieszka Podsiadlik
as Irena Lewandowska
Tomasz Kot
as Stefan Tomaszeski
Patrick Kennedy
as Campbell