Reparto y equipo

Craig Mazin

Jared Harris Valery Legasov

Stellan Skarsgård Boris Shcherbina

Emily Watson Ulana Khomyuk

Paul Ritter Anatoly Dyatlov

Jessie Buckley Lyudmilla Ignatenko

Adam Nagaitis Vasily Ignatenko

Sam Troughton Alexandr Akimov

Robert Emms Leonid Toptunov

Con O'Neill Viktor Bryukhanov

Adrian Rawlins Nikolai Fomin

Alan Williams KGB Chairman Charkov

David Dencik Mikhail Gorbachev

Mark Lewis Jones General Pikalov

Ralph Ineson General Tarakanov

Barry Keoghan Pavel

Sanne Wohlenberg

Hildur Guðnadóttir

Jakob Ihre