- Vladimir Melnyk - Valeri Khodemechuk
- Vladimir Velianik - Yuri Tregub
- Denys Hranchak - Sasha Agulov
- Vladimir Ilenko - Nicolai Fornin
- Nikolai Steinberg - Himself - Nuclear Physicist
- Boris Stolyarchuk - Himself - Chernobyl Survivor
- Alexander Yuvchenko - Himself - Chernobyl Survivor
- Piers Paul Read - Himself - Writer
- Sergei Yankovsky - Himself - Chernobyl Investigator
- Anatoli Diatlov - Himself (archive footage)
- Mikhail Gorbachev - Himself (archive footage)
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Renny Bartlett
Capítulo disponible en las siguientes plataformas: