Guest Stars Gina McKee as Home Secretary Jennifer Birch Barry Atsma as Peter van Syoc Co Starring Ruth Madeley as Ingrid Woodhouse Howard Corlett as Trevor Birch Yohanna Ephrem as Jasmine Motha Nikolaos Brahimllari as Zef Ann Akin as Margaret Akinola Amerjit Deu as Dr. Dev Rao Lucas Hare as Myfanwy's Father James Nelson-Joyce as Henry Hylton Foster Roberto Davide as Andrei Balakin Caroline Sheen as Myfanwy's Mother Shane Walshe as Barman Jemma McKenzie-Brown as Lizzie Kwami Odoom as Jay