Trailer
Cast
James D'Arcy
Patrick Blackett
David Dastmalchian
William Borden
Matthew Modine
Vannevar Bush
Louise Lombard
Ruth Tolman
Josh Peck
Kenneth Bainbridge
Brett DelBuono
Concerned Scientist
Pat Skipper
James Byrnes
James Remar
Henry Stimson
Steve Coulter
James Conant
Kerry Westcott
Laughing Woman
Matthias Schweighöfer
Werner Heisenberg
Sadie Stratton
Mary Washburn
David Rysdahl
Donald Hornig
James Urbaniak
Kurt Gödel
Gary Oldman
Harry Truman
Florence Pugh
Jean Tatlock
John Gowans
Ward Evans
Michael Andrew Baker
Joe Volpe
Gustaf Skarsgård
Hans Bethe
Jessica Erin Martin
Charlotte Serber
Ronald Auguste
J. Ernest Wilkins
Harrison Gilbertson
Philip Morrison
Drew Kenney
Soldier
Michael Angarano
Robert Serber
Jeremy John Wells
AAF Officer
Bryce Johnson
AAF Officer 2
Emily Blunt
Kitty Oppenheimer
Kenneth Branagh
Niels Bohr
Harry Groener
Senator McGee
Britt Kyle
Barbara Chevalier
Jack Quaid
Richard Feynman
Rami Malek
David Hill
Petrie Willink
Dutch Student
Jeff Hephner
Congressman
Maria Teresa Zuppetta
Consoling Woman
Jason Clarke
Roger Robb
Macon Blair
Lloyd Garrison
Meg Schimelpfenig
Senator's Assistant (uncredited)
Robert Downey Jr.
Lewis Strauss
Máté Haumann
Leo Szilard
Kate French
Presidential Aide
Alden Ehrenreich
Senate Aide
David Krumholtz
Isidor Rabi
Alex Wolff
Luis Alvarez
Emma Dumont
Jackie Oppenheimer
Matt Damon
Leslie Groves
Casey Affleck
Boris Pash
Jefferson Hall
Haakon Chevalier
Gregory Jbara
Chairman Magnuson
Josh Zuckerman
Rossi Lomanitz
Tom Jenkins
Richard Tolman
Trond Fausa Aurvåg
George Kistiakowsky
Olivia Thirlby
Lilli Hornig
Steven Houska
Senator Scott
Olli Haaskivi
Edward Condon
Flora Nolan
Burn Victim
Christina Hogue
Kissing Woman
Clay Bunker
Kissing Man
Hap Lawrence
Lyndon Johnson
Benny Safdie
Edward Teller
Dane DeHaan
Kenneth Nichols
Tony Goldwyn
Gordon Gray
Tim DeKay
Senator Pastore
Rory Keane
Hartland Snyder
Guy Burnet
George Eltenton
Danny Deferrari
Enrico Fermi
Jack Cutmore-Scott
Lyall Johnson
Josh Hartnett
Ernest Lawrence
Dylan Arnold
Frank Oppenheimer
Devon Bostick
Seth Neddermeyer
Sean Avery
Weatherman
Scott Grimes
Counsel
Ted King
Senator Bartlett
Cillian Murphy
J. Robert Oppenheimer
Kurt Koehler
Thomas Morgan
Christopher Denham
Klaus Fuchs
Will Roberts
George C. Marshall
Adam Kroeger
Army Captain
Tyler Beardsley
Weeping Man
Tom Conti
Albert Einstein