Ariane Riecker, Dirk Schneider
Hansi Jochmann (Narration), Oleksiy Breus (Self, control room operator at the Chernobyl Nuclear Power Plant), Anna Veronika Wendland (Self, historian), Valery Yevtushenko (Self, former Militsiya officer), Maria Protsenko (Self, chief architect for Pripyat City), Sergio Plohkii (Self), Natasha Protsenko (Self, Maria Protsenko's daughter), Sonja D. Schmid (Self, associate professor of Science, Technology, and Society), Mykola Steinberg (Self, Chief Engineer of the Chornobyl Nuclear Power Plant), Robert Peter Gale (Self, leukemia researcher)