Sacha Dhawan (Davos from Iron Fist) will also star, alongside Nathan Stewart-Jarrett (Curtis from Misfits), Catherine Schell (Bond film On Her Majesty’s Secret Service and Doctor Who 1979 series City of Death), Youssef Kerkour (Sami from Home) and Clive Russell (Brynden Tully from Game of Thrones).
The actors above join a cast that includes John Heffernan, Joanna Scanlan, Dolly Wells, Morfydd Clark, Lujza Richter and Mark Gatiss.
Filming for the three-part series began in Orava Castle in Slovakia before continuing in England. Jonny Campbell (Westworld), Damon Thomas (Killing Eve) and Paul McGuigan (Sherlock) will direct episodes.
The series will premiere on BBC1 in the UK and on Netflix in other territories.