Guest Stars Georgina Beedle as Wilhelmina Thomas Doherty as Peter Zavadovsky Antonia Clarke as Sophia / Maria Phil Dunster as Razumovsky James Northcote as Alexander Bezborodko Adam El Hagar as Valerian Zubov Andrew Rothney as Alexander Mamonov Aina Norgilaitė as Elena Andrew Bone as Charles Joseph De Ligne Tom Lawrence as Doctor Valerijus Jevsejevas as Adjutant Ivars Brakovskis as Court Official Aziz Capkurt as Crimean Tatar Leader Jonas Bagdžiūnas as Hunter