A documentary composed of historical footage and contemporary interviews from the men and women of Los Alamos, recalling their experiences of the community and the creation of the atomic bomb from the inception of the program in 1943.
| Actor | Role |
|---|---|
| EEliot KohenNarrator (voice) | Narrator (voice) |
 J. Robert OppenheimerSelf (archive footage) | Self (archive footage) |
 Frank OppenheimerSelf | Self |
 Hans BetheSelf | Self |
 Edward TellerSelf | Self |
 Isidor Isaac RabiSelf | Self |
| EEmilio SegrèSelf | Self |
| HHarold AgnewSelf | Self |
| SStanislaw UlamSelf | Self |
| VVictor WeisskopfSelf | Self |
| GGeorge KistiakowskySelf | Self |
| PPhilip MorrisonSelf | Self |
| PPriscilla DuffieldSelf | Self |
| DDorothy McKibbinSelf | Self |
| RRobert R. WilsonSelf | Self |
| EEdwin McMillanSelf | Self |
| RRobert BacherSelf | Self |