Jessie Buckley Lyudmilla Ignatenko
Emily Watson Ulana Khomyuk
Jared Harris Valery Legasov
Barry Keoghan Pavel
Stellan Skarsgård Boris Shcherbina
Ralph Ineson General Tarakanov
David Dencik Mikhail Gorbachev
Paul Ritter Anatoly Dyatlov
Con O'Neill Viktor Bryukhanov
Alex Ferns Glukhov
Fares Fares Bacho
Adam Nagaitis Vasily Ignatenko
Adrian Rawlins Nikolai Fomin
Astrid Sieben Standby Art Director
Michael McElhatton Prosecutor Andrei Stepashin
Sam Troughton Alexandr Akimov
Robert Emms Leonid Toptunov
Alan Williams KGB Chairman Charkov
Mark Lewis Jones General Pikalov
Nina Gold Casting
Craig Mazin Screenplay, Executive Producer
Sylvie Ong Costume Supervisor
Johan Renck Co-Executive Producer
Martin Ware Casting Associate
Robert Sterne Casting
Evyen Klean Music Supervisor
Barrie Gower Prosthetic Supervisor
Hildur Guðnadóttir Original Music Composer
Daniel Parker Makeup Designer, Prosthetic Designer
Jane Featherstone Executive Producer
Ants Martin Vahur "A" Camera Operator, Steadicam Operator
Harry Barnes ADR Supervisor
Paul Spateri Prosthetic Supervisor
Andy Potter 3D Artist
Karen Wakefield Supervising Art Director
Jacqueline Lesko Co-Producer
Chris Fry Co-Executive Producer
Sanne Wohlenberg Producer
Gavin Fitch Art Direction
Marta Skalska Makeup & Hair
Elo Soode Concept Artist, Conceptual Design
Odile Dicks-Mireaux Costume Design
Philip Clements Foley Mixer
Luke Hull Production Design
Stefan Henrix Supervising Sound Editor
Stuart Hilliker Sound Re-Recording Mixer
Michael Maroussas Dialogue Editor
Liam Daniel Still Photographer
Neil Floyd Graphic Designer
Max Dennison Visual Effects Supervisor
Polly Jefferies Production Coordinator
Emily Greeley Visual Effects Compositor
Eliot Speed Animation
Tobias Henriksson Gaffer
Jean-Clement Soret Colorist
Jill McCullough Dialect Coach
Chris Roufs Script Supervisor
Joe Beal Sound Designer
Martina Byrne Prosthetic Makeup Artist
Paul Jones Visual Effects Producer
Carolyn Strauss Executive Producer
Max Klaentschi Art Direction
Jo Vaughan Animal Wrangler
Laura Ng Standby Art Director
Anita Dhillon Graphic Designer
J-P Passi Additional Camera, Second Unit Director of Photography
David Meanti First Assistant Director
Anna Wright Foley Artist
Gintas Matonis Construction Manager
Jakob Ihre Director of Photography
Andrius Zubkaitis Leadman
John Kay Animation