David Morrissey

Self - Narrator (voice)

Igor Slavinskiy

Anatoli Diatlov

Aleksander Khoroshko

Alexander Akimov

Volodya Stepanenko

Leonid Toptunov

Aleksander Klimbutski

Boris Stolyarchuk

Volodymyr Holosniak

Valeri Perevozchenko

Vladimir Mamchur

Alexander 'Sasha' Yuvchenko

Irina Pavliuk

Natasha Yuvchenko

Nikita Chavinin

Kirill Yuvchenko

Vladimir Melnyk

Valeri Khodemechuk

Vladimir Velianik

Yuri Tregub

Denys Hranchak

Sasha Agulov

Vladimir Ilenko

Nicolai Fornin

Nikolai Steinberg

Self - Nuclear Physicist

Boris Stolyarchuk

Self - Chernobyl Survivor

Alexander Yuvchenko

Self - Chernobyl Survivor

Piers Paul Read

Self - Writer

Sergei Yankovsky

Self - Chernobyl Investigator

Anatoli Diatlov

Self (archive footage)

Mikhail Gorbachev

Self (archive footage)