| | | | Paul or The Discovery of the Irrational |
| | Paul | Ehrenfest | The Austrian physicist who shot his own son. |
| | Vassily | Ehrenfest | Paul's son. |
| | Mrs. | Gottlieb | Vassily's teacher. |
| | | | John or The Mind of Reasons |
| | Heinrich | Faust | The great scholar. |
| | Tatyana Alexeyevna | Afanassjewa | Paul's wife. A mathematician. |
| | Ludwig | Boltzmann | Paul's mentor. |
| | Ernst | Mach | Paul's friend. A positivist. |
| | Samuel | Godsmit | Paul's friend. |
| | Nelly Posthumus | Meyjes | Paul's mistress. |
| | Tatyana | | Paul's child. |
| | Galinka | | Paul's child. |
| | Paul | Ehrenfest JR. | Paul's child. |
| | Arend | Rutgers | One of Paul's PhD students. |
| | Arthur | Ehrenfest | Paul's brother. |
| | | | Part One |
| | Jansci | Von Neumann | Wigner's genius classmate. Father of computer. AKA: Johnny, Janos. |
| | Eugene | Wigner | Janos's childhood friend. AKA: Jeni Pal. |
| | Gabor | Szego | One of Eugene's senior teachers. |
| | Michael | Fekete | Janos's co-author. |
| | Klari | Dan | Janos's second wife. |
| | Paul | Dirac | Wigner's brother-in-law. |
| | Leo | Szilard | Wigner's close friend. |
| | Edward | Teller | Wigner's close friend. |
| | Albert | Einstein | One of Wigner's genius friends. |
| | Margit Kann | Von Neumann | Janos's mother. |
| | Nicholas Augustus | Von Neumann | Janos's brother. |
| | Lili | | Janos's eldest cousin. |
| | Mariette | Kovesi | Janos's first wife. |
| | Marina | Von Neumann | Janos and Mariette's daughter. |
| | Max | Neumann | Janos's father. |
| | Franz | Joseph | The emperor. |
| | George | Polya | One of Janos's professors in Budapest. |
| | David | Hilbert | A scientist. Janos's master. |
| | Theodore | Von Karman | Hungarian mathematician. |
| | George | Cantor | Creator of set theory. |
| | Francis | Bacon | English philosopher. |
| | Bertrand | Rusell | One of Europe's foremost logicians. |
| | Alfred | North-Whitehead | Russell's colleague. |
| | Bela | Kun | Hungary's former leader. |
| | Rudolf | Carnap | One of the physicists. |
| | Heyting | | One of the physicists. |
| | Brouwer | | One of the physicists. |
| | Kurt | Godel | An Austrian logician. |
| | Adele | Godel | Kurt's wife. |
| | | | Part Two |
| | | Oppenheimer | Leader of Los Alamos Atomic Bomb Project. |
| | Richard | Feynman | One of Oppenheimer's men. |
| | Fermi | | One of Oppenheimer's physicists. |
| | Bethe | | One of Oppenheimer's physicists. |
| | Ulam | | One of Oppenheimer's physicists. |
| | Niels | Bohr | One of Oppenheimer's physicists. |
| | Werner | Heisenberg | The man in charge of Hitler's nuclear program. |
| | Hashimoto | Utaro | The national GO champion. |
| | Iwamoto | Kaoru | Utaro's challenger. |
| | Klaus | Fuchs | The soviet's spy. |
| | Kenneth | Griesen | One of Oppenheimer's men. |
| | General | Groves | The man in charge of Manhattan Project. |
| | Jack | Hubbard | Manhattan's team leader. |
| | Oskar | Morgenstern | Janos's colleague. |
| | Stan | Ulam | Janos's friend. |
| | Dorothy | Morgenstern | Oskar's wife. |
| | Virginia | Davis | A famous artist. Martin's wife. |
| | Martin | Davis | A logician and mathematician. |
| | Julian | Bigelow | Jonas's co-inventor of M.A.N.I.A.C. |
| | Herber | York | Director of the Weapons Laboratory at Livermore. |
| | | | Part Three |
| | Nils Aall | Berricellic | Jonas's new colleague. |
| | Sydney | Brenner | A South African biologist. |
| | Charles | Galton-Darwin | Charles Darwin's grandson. Turing's boss. |
| | Alan | Turing | A mathematician and computer scientist. Janos's colleague. |
| | Eisenhower | | Current US President. |
| | Charles | Dan | Klari's father. |
| | Vincent | Ford | Janos's attaché. |
| | Anselm | Strittmatter | The priest who performed Janos's burial rite. |
| | Carl | Morgenstern | Oskar's son. |
| | | | Lee or The Delusions of Artificial
Intelligence. |
| Pro | Emperor | Yao | The inventor of the game of GO. AKA: Yao-Mu. |
| | Danzhu | | Yao's son. |
| | San | Yi | Yao's concubine. Danzhu's mother. |
| | | | The Strong Stone |
| | Lee | Sedol | 9 Dan Master of GO. |
| | Kweon | Kab-Yong | Founder of Go Academy. Sedol's master. |
| | | | Brainchild |
| | Demis | Hassabis | The brainchild of AlphaGO. A chess master. |
| | Peter | Thiel | A rich venture capitalist. |
| | Garry | Kasparov | A chess player legend. |
| | Anatoly | Karpov | Garry's greatest opponent. |
| | Fan | Hui | A Go player. |
| | | | A Sharp , Sudden Invasion |
| | Aja | Huang | Senior programmer from Deep mind. |
| | Guo | Juan | A Chinese GO player. |
| | | | A Thing of Beauty , Not of this world. |
| | Kim | Hyun-Jin | Lee's wife. |
| | Michael | Redmond | The only western player to achieved 9 dan status. |
| | | | God's Status |
| | Gu | Li | One of Lee Sedol's historic rivals. |
| | Chris | Garlock | An American commentator. |
| Epi | Ke | Jie | The Chinese prodigy. |
