During World War II, the American physicist Robert Oppenheimer was at the head of the research work for the production of the atomic bomb. He was removed from that position in 1953 due to disagreements with the US Atomic Commission regarding the development of the hydrogen bomb. The investigation that was conducted against him during the infamous time of anti-communist hysteria and the "witch hunt" during the time of Senator McCarthy is testimony to the great moral and psychological dilemma in which the scientists of that era found themselves.
| Actor | Role |
|---|---|
 Branko PlešaRobert Oppenheimer | Robert Oppenheimer |
 Svetolik NikačevićGordon Gray | Gordon Gray |
 Predrag TasovacLord Evans | Lord Evans |
 Janez VrhovecThomas Morgan | Thomas Morgan |
 Petar BanićevićRoger Bow | Roger Bow |
 Dušan BulajićK.E. Rolan | K.E. Rolan |
 Đorđe JelisićHerbert Marks | Herbert Marks |
 Vladimir PopovićLord Harrison | Lord Harrison |
| SStojan DečermićPukovnik Pes | Pukovnik Pes |
 Jovan MilićevićRossi Lomanitz | Rossi Lomanitz |
 Marko TodorovićEdward Teller | Edward Teller |
 Miloš ŽutićAjns Beki | Ajns Beki |
 Braslav BorozanAres Neglis | Ares Neglis |
 Rade MarkovićIsaak Rabi | Isaak Rabi |