Simon Russell Beale
as Lavrenti Beria
Rupert Friend
as Vasily
Andrea Riseborough
as Svetlana
Paul Chahidi
as Nicolai Bulganin
Dermot Crowley
as Lazar Kaganovich
Adrian McLoughlin
as Josef Stalin
Paul Whitehouse
as Anastas Mikoyan
Cara Horgan
as Lidiya Timashuk