| Buzz |
Aldrin | Astronaut; Armstrong's Apollo 11 partner |
| Neil |
Armstrong | American astronaut; first person on the Moon |
| Chuck |
Berry | American singer, songwriter, and guitarist |
| Niels |
Bohr | Danish physicist; atomic structure pioneer |
| Usain |
Bolt | Jamaican sprinter; Olympic champion |
| Johnny |
Cash | American country singer-songwriter |
| Michael |
Collins | Backup commander of Apollo 14; American astronaut |
| Bob |
Dylan | American singer-songwriter |
| Albert |
Einstein | Theoretical physicist; developed the theory of relativity |
| Duke |
Ellington | American pianist and composer |
| Alberto |
Giacometti | Swiss sculptor and painter |
| Billie |
Holiday | American jazz singer |
| Blind Willie |
Johnson | American gospel blues singer and guitarist |
| Frida |
Kahlo | Mexican painter known for self-portraits |
| Sergei |
Krivalev | First Russian on the first expedition to the space station |
| Rand |
McNally | Renowned publisher specializing in mapping and navigation |
| Golda |
Meir | Former Prime Minister of Israel |
| Jackie |
Onassis | Former First Lady of the United States |
| Augusto |
Pinochet | Chilean dictator and general |
| Erik |
Satie | French composer and pianist |
| Johann |
Sebastian Bach | German composer and musician |
| Igor |
Stravinsky | Russian composer and conductor |
| Nikola |
Tesla | Serbian-American inventor and electrical engineer |
| Virginia |
Woolf | English modernist writer |
| Roman |
| Protagonist; a cosmonaut |
| Shaun |
| One of the crew members |
| Velazquez |
| Shaun's painting teacher; an artist |
| Chie |
| Girl whose mother recently died |
| Nell |
| One of the crew; Shaun's wife |
| Pietro |
| One of the astronauts |
| Anton |
| One of the astronauts |
| Tony |
| Astronaut Roman met |
| Therese |
| Girl on Earth Roman talked to |
| CAPCOM |
| Astronaut serving as ground-to-space communicator |