Travis Fimmel (Desmond Hart), Emily Watson (Valya Harkonnen), Olivia Williams (Tula Harkonnen), Jodhi May (Empress Natalya), Sarah-Sofie Boussnina (Princess Ynez), Mark Strong (Emperor Javicco Corrino), Josh Heuston (Constantine Corrino), Chris Mason (Keiran Atreides), Aoife Hinds (Sister Emeline), Shalom Brune-Franklin (Mikaela)