Medvirkende og filmhold
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Jared Francis HarrisValery Legasov - Stellan SkarsgårdBoris Shcherbina
- Emily WatsonUlana Khomyuk
- Paul RitterAnatoly Dyatlov
- Jessie BuckleyLyudmilla Ignatenko
- Adrian RawlinsNikolai Fomin
- Con O'NeillViktor Bryukhanov
- Sam TroughtonAkimov
- Ralph InesonGeneral Tarakanov
- Mark Lewis JonesGeneral Pikalov
- David DencikGorbachev
- Stakka BoInstruktør
- Jane FeatherstoneExecutive producer
- Carolyn StraussExecutive producer
- Sanne WohlenbergProducer
- Craig MazinManuskriptforfatter
- Craig MazinSkaber