Present Characters
Just a boy from School 20.
Nikolai "Kolya" Gerasimov (Alexei Fomkin)
- Adaptation Rename: Surname changed from Naumov to Gerasimov to not confuse with Ilya Naumov (Fima).
Fima Korolev (Ilya Naumov)
Like a sister to Alisa.
Yulia Gribkova (Marianna Ionesyan)
Marta Erastovna the physical education teacher (Natalia Varley)
- Agent Scully: Does not believe in space pirates and time travel, but does accept that Alisa is in danger.
The other schoolchildren
- Dawson Casting: Averted Trope. All the child actors are around 12 or 13.
- Huge Schoolgirl: Albina Fetisova is distinctly taller than the other girls.
- Lovable Alpha Bitch: Albina Fetisova.
- Mouthy Kid: Kolya Sadovsky butts into Alisa and Yulia's conversation with Kolya Gerasimov, and boasts that if he met space pirates, he'd shoot them with a laser.
- One-Steve Limit: Averted. Three Kolyas: Kolya Sulima, Kolya Sadovsky, and Kolya Gerasimov.
The eyewitness
Future Characters
The guest from the future.
- Adaptation Dye-Job: Alisa is blonde in the books, but Natalia Guseva is a brunette.
- Always Someone Better: Better in class than any of the other students.
- Fake Shemp: When she speaks English, the camera quickly cuts away from her face to the rest of her class. Her voice was dubbed over by the daughter of an English diplomat at the British Embassy in Moscow.
- Friend to All Living Things: Is first seen petting a crocodile at the Kosmozoo.
- Kid from the Future: Discussed Trope. She tells Yulia "Maybe I'm your granddaughter," but is probably joking.
- Omniglot: "I'm not an expert. I only know eight languages." (Russian plus English, French, Spanish, Czech, Finnish, Hindi, Chinese, and Japanese.)
- Spell My Name With An S: Alice or Alisa?
A romantic at heart.
Grandfather Pavel (Vladimir Nosik)
The Time Institute scientists, Ivan Sergeevich (Boris Shcherbakov), Gogi (Ruben Simonov), Maria (Yelena Tsyplakova)
The future schoolchildren
- Values Dissonance: By our standards, schoolchildren making and launching their own satellite would be ludicrous. By 2084 standards, it is normal.
Electron Ivanovich and Napoleon the goat