- 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)
- Alex Ferns (Glukhov)
- Fares Fares (Bacho)
- Michael McElhatton (Prosecutor Andrei Stepashin)
Chernobyl — S1E5
Episode: Vichnaya Pamyat
Air Date: 2019-06-03
Runtime: 73 min
Overview
Valery Legasov, Boris Shcherbina and Ulana Khomyuk risk their lives and reputations to expose the truth about Chernobyl.