Casting Oppenheimer
Oppenheimer Oppenheimer
- David Hill Rami Malek
- Niels Bohr Kenneth Branagh
- Kenneth Nichols Dane DeHaan
- Frank Oppenheimer Dylan Arnold
- Isidor Isaac Rabi David Krumholtz
- Senate Aide Alden Ehrenreich
- Vannevar Bush Matthew Modine
- Harry S. Truman Gary Oldman
- Luis Walter Alvarez Alex Wolff
- Boris Pash Casey Affleck
- Richard Feynman Jack Quaid
- Jackie Oppenheimer Emma Dumont
- Werner Heisenberg Matthias Schweighöfer
- William L. Borden David Dastmalchian
- Edward Condon Olli Haaskivi
- Klaus Fuchs Christopher Denham
- Counsel Scott Grimes
- Patrick Blackett James D'Arcy
- Ruth Tolman Louise Lombard
- Roger Robb Jason Clarke
- Enrico Fermi Danny Deferrari
- George Eltenton Guy Burnet
- Albert Einstein Tom Conti
- Kenneth Bainbridge Josh Peck
- Gregory Jbara
- Gordon Gray Tony Goldwyn
- Hans Bethe Gustaf Skarsgård
- Richard Tolman Tom Jenkins
- George Kistiakowsky Trond Fausa
- Seth Neddermeyer Devon Bostick
- Philip Morrison Harrison Gilbertson
- Donald Hornig David Rysdahl
- Giovanni Rossi Lomanitz Josh Zuckerman
- Lilli Hornig Olivia Thirlby
- Congressman Jeff Hephner
- Army Air Force Officer Bryce Johnson
- Senator's Assistant Meg Schimelpfenig
- Dutch Student Petrie Willink
- Henry Stimson James Remar
- Leo Szilard Máté Haumann
- Burn Victim Flora Nolan
- Haakon Chevalier Jefferson Hall
