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