| Pro | Luke | | Leo's grandson. Natalie's son. |
| | Jared | | Leo's grandson. Natalie's son. |
| | Greg | | Leo's son-in-law. Natalie's husband. |
| | Dolly Ida | Blum | Nathan's sister. Aka: Leisa, Doleczki. |
| | | | Part One |
| 1 | Alfred | Wetzler | Rudolf's colleague. A camp escapee. |
| | Rudolf | Vrba | A camp escapee. |
| 2 | Peter | Strauss | Bill Donovan's chief and OSS operation officer. |
| | Frank | Roosevelt | The current U.S. President. |
| | Bill | Donovan | Roosevelt's chief spymaster. Aka: The Big Man. |
| | Henry | Stimson | Roosevelt's secretary of war. |
| | Robert | Morgenthau | Roosevelt's treasury secretary. |
| 3 | Alfred | Mendl | An electromagnetic physicist. The One Man. |
| | Martr | Mendl | Alfred's wife. |
| | Lucy | Mendl | Alfred's daughter. |
| 4 | Martin | Franke | The gruppen
fuehrer. |
| | Elene | Zeitman | A 12-year-old
Jew. |
| 7 | Ricardo | Oliva | A man from the International Refugee Committee. |
| | Mr. | Correa | An archbishop. |
| | Alexander | Katzner | The man from Jewish World Congress. |
| 8 | Robert | Oppenheimer | A physicist. |
| | Leslie | Groves | Oppenheimer's military overseer. |
| 9 | Nathan | Blum | An intelligence lieutenant in D.C. The U.S. spy. |
| 10 | Leisa | Blum | Nathan's sister. |
| | Epstein | | Blum's friend. |
| | Morgenstern | | The rabbi. |
| | Jakob | | Nathan's friend who was taken by
Gestapo. |
| | Isidor | Blum | Nathan's father. |
| 13 | Rabbie | Leitner | Nathan's instructor. |
| | Chaim | | Nathan's friend. |
| | | | Part Two |
| 15 | Mrs. | Zelworwicz | Mendl's associate. |
| | Ostrow | | An ex bookkeeper. Mendl's acquaintance. |
| | Ullie | | A baker from Warsaw. |
| | Vacek | | Mendl's kapo. |
| | Scharf | | A German officer. |
| | Nieholtz | | The camp captain. |
| 17 | Markov | | Mendl's co-slaves. |
| | Leo | Wolciek | The young boy that Mendl befriended in camp. |
| 18 | Langer | | A Nazi corporal. |
| | Kurt | Ackermann | The Lagerkommandant. |
| 19 | Hedda | | Ackermann's maid. |
| 20 | Greta | Ackermann | Kurt's wife. |
| | Niels | Bohr | The most respected physicist. |
| | Richard | Feynman | Bohr's colleague and friend. |
| | Han | Bethe | Bohr's colleague and friend. |
| | Enrico | Fermi | Bohr's colleague and friend. |
| 25 | Kendry | | A British military officer. |
| | Riggs | | A British military officer. |
| | Radjekowski | | A British military officer. |
| 26 | Schubert | | A musician. |
| 28 | Verstoeder | | Martin Franke's aide. |
| 30 | Josef | Wrarinski | Nathan's driver. |
| | Anja | | Nathan's niece. |
| 31 | General | Graebner | Franke's colleague. |
| | | | Part Three |
| | Hoss | | The SS colonel. |
| | Himmler | | The Reichsfuhrer. |
| 39 | Zichenko | | Nathan's kapo. |
| 40 | Fromm | | Ackermann's aide. |
| 42 | Richter | | One of the guards. |
| 43 | Goring | | The Reichmarshall. |
| 45 | Muller | | The blockfuhrer. |
| 46 | Fuerst | | One of the camp's guards. |
| 47 | Katja | | Strauss's contact. |
| 48 | Shetman | | One of the prisoners who helped Nathan Blum. |
| | | | Part Four |
| 50 | Macak | | The foreman. |
| | Pavel | | The foreman. Aka: The Bear. |
| 54 | Levin | | The head of camp repair team. |
| | Rozen | | One of the prisoners. |
| 58 | Karl | Wrarinski | Josef's son. |
| | Nicolas | Wrarinski | Josef's son. |
| 60 | Hans | Franke | Martin's brother. |
| | Ernst | Franke | Martin's brother. |
| 61 | Panish | | Mendl's blockfuhrer. |
| 66 | Scharf | | A sergeant major. |
| 74 | Janusz | | The partisan leader. |
| 76 | Natalie | | Leo's daughter. |
