Cast
- Shea Whigham as Joe Cronin
- Hiroyuki Sanada as Kawabata
- Mark Strong as Werner Heisenberg
- Connie Nielsen as Koranda
- Tom Wilkinson as Paul Scherrer
- Paul Rudd as Moe Berg
- Pierfrancesco Favino as Martinuzzi
- William Hope as John Kleran
- Sienna Miller as Estella Huni
- Brian Caspe as Commanding Officer
- Giancarlo Giannini as Professor Eduardo Amaldi
- Demetri Goritsas as Clifton Fadiman
- Roy McCrerey as Princeton Conductor
- Anna Geislerová as Rathe
- Agnese Nano as Mrs. Amaldi