Cast & Crew
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Cillian MurphyJ. Robert Oppenheimer - Emily BluntKitty Oppenheimer
- Robert Downey Jr.Lewis Strauss
- Alden EhrenreichSenate Aide
- Scott GrimesCounsel
- Jason ClarkeRoger Robb
- Kurt KoehlerThomas Morgan
- Tony GoldwynGordon Gray
- John GowansWard Evans
- Macon BlairLloyd Garrison
- James D'ArcyPatrick Blackett
- Kenneth BranaghNiels Bohr
- Harry GroenerSenator McGee
- Gregory JbaraChairman Magnuson
- Ted KingSenator Bartlett
- Tim DeKaySenator Pastore
- Steven HouskaSenator Scott
- Emma DumontActor
- Tom ContiAlbert Einstein
- David KrumholtzIsidor Rabi
- Petrie WillinkDutch Student
- Matthias SchweighöferWerner Heisenberg
- Josh HartnettErnest Lawrence
- Alex WolffLuis Alvarez
- Josh ZuckermanRossi Lomanitz
- Rory KeaneHartland Snyder
- Michael AngaranoRobert Serber
- Dylan ArnoldFrank Oppenheimer
- Florence PughJean Tatlock
- Sadie StrattonMary Washburn
- Jefferson HallHaakon Chevalier
- Guy BurnetGeorge Eltenton
- Tom JenkinsRichard Tolman
- Matthew ModineVannevar Bush
- Louise LombardRuth Tolman
- David DastmalchianWilliam Borden
- Michael Andrew BakerJoe Volpe
- Jeff HephnerCongressman
- Matt DamonLeslie Groves
- Dane DeHaanKenneth Nichols
- Olli HaaskiviEdward Condon
- David RysdahlDonald Hornig
- Josh PeckKenneth Bainbridge
- Jack QuaidRichard Feynman
- Brett DelBuonoConcerned Scientist
- Ben SafdieEdward Teller
- Gustaf SkarsgårdHans Bethe
- James UrbaniakKurt Gödel
- Trond FausaGeorge Kistiakowsky
- Devon BostickSeth Neddermeyer
- Danny DeferrariEnrico Fermi
- Christopher DenhamKlaus Fuchs
- Jessica Erin MartinCharlotte Serber
- Ronald AugusteJ. Ernest Wilkins
- Rami MalekDavid Hill
- Máté HaumannLeo Szilard
- Olivia ThirlbyLilli Hornig
- Jack Cutmore-ScottLyall Johnson
- Casey AffleckBoris Pash
- Christopher NolanDirector
- Emma ThomasProducer
- Charles RovenProducer
- Christopher NolanProducer
- James WoodsProducer
- Thomas HayslipProducer
- J. David WargoProducer
- Christopher NolanWriter