Daniel London as J. Robert Oppenheimer
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Rachel Brosnahan as Abby Isaacs and Ashley Zukerman as Charlie Isaacs
Rachel Brosnahan as Abby Isaacs
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Christopher Denham as Jim Meeks
Ashley Zukerman as Charlie Isaacs
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Rachel Brosnahan as Abby Isaacs and Katja Herbers as Helen Prins
Katja Herbers as Helen Prins
Olivia Williams as Liza Winter talking with military police
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John Benjamin Hickey as Frank Winter
Christopher Denham as Jim Meeks and Michael Chernus as Louis “Fritz” Fedowitz
Testing the gadget
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