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