剧中将会描述当时究竟发生了甚么引致这事故，而且当年勇敢的众人是如何牺牲自己拯救处于灾难中的欧洲
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
