Jessie Buckley Lyudmilla Ignatenko
Stellan Skarsgård Boris Shcherbina
Emily Watson Ulana Khomyuk
Barry Keoghan Pavel
Jared Harris Valery Legasov
Ralph Ineson General Tarakanov
David Dencik Mikhail Gorbachev
Con O'Neill Viktor Bryukhanov
Fares Fares Bacho
Adrian Rawlins Nikolai Fomin
Paul Ritter Anatoly Dyatlov
Craig Mazin Creator, Executive Producer
Nina Gold Casting
Alex Ferns Glukhov
Adam Nagaitis Vasily Ignatenko
Michael McElhatton Prosecutor Andrei Stepashin
Sam Troughton Alexandr Akimov
Mark Lewis Jones General Pikalov
Barrie Gower Prosthetic Supervisor
Luke Hull Production Design
Alan Williams KGB Chairman Charkov
Robert Emms Leonid Toptunov
Martin Ware Casting Associate
Carolyn Strauss Executive Producer
Jane Featherstone Executive Producer
Hildur Guðnadóttir Original Music Composer
Johan Renck Co-Executive Producer
Neil Floyd Graphic Designer
Anna Wright Foley Artist
Karen Wakefield Supervising Art Director
Sanne Wohlenberg Producer
Chris Fry Co-Executive Producer
Astrid Sieben Standby Art Director
Jonas Balys Paslauskas Electrician
J-P Passi Additional Camera, Second Unit Director of Photography
Robert Sterne Casting
Mark Pascoe 3D Artist
Chris Roufs Script Supervisor
Laura Ng Standby Art Director
Jakob Ihre Director of Photography
Philip Clements Foley Mixer
Jill McCullough Dialect Coach
Stefan Henrix Supervising Sound Editor
Måns Månsson Second Unit Director
Clare Cheetham Visual Effects Producer
Odile Dicks-Mireaux Costume Design
Elo Soode Concept Artist, Conceptual Design
Claire Levinson-Gendler Set Decoration
Lucy Sibbick Prosthetic Makeup Artist
Michael Maroussas Dialogue Editor
Polly Jefferies Production Coordinator
Stuart Hilliker Sound Re-Recording Mixer
Ants Martin Vahur "A" Camera Operator, Steadicam Operator
Gavin Fitch Art Direction
Jacqueline Lesko Co-Producer
Tom Stewart Foley Editor
Egidijus Braziūnas Rigging Gaffer
Anna Munro Costume Supervisor
Nicola Morrow Production Manager
Jean-Clement Soret Colorist
Daniel Parker Makeup Designer, Prosthetic Designer
Liam Daniel Still Photographer
Alex Alvarez Animation
Evyen Klean Music Supervisor
David Meanti First Assistant Director
Rūta Miglinaitė Makeup & Hair
Dalia Survilaitė Local Casting
Ieva Rojūtė Set Dressing Buyer
Jonas Čepulis Electrician
Rimvydas Leipus Additional Camera
Robert How Line Producer
Harry Barnes ADR Supervisor