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