The contents of the Wonderful Doctor’s yellow suitcase cure not only colds and the flu, but also sadness, loneliness, cowardice, and timidity. Petya is a modern, reclusive boy who refuses to go outside; he is afraid of society and other children. His parents decide to turn to the Wonderful Doctor, but his magic suitcase is stolen. From that moment on, a series of adventures begins.
| Actor | Role |
|---|---|
 Pavel PriluchnyyArtur | Artur |
 Oleg Komarovdoktor | doktor |
 Lyudmila Artemevababushka Tomy | babushka Tomy |
 Lyubava DolinskiToma | Toma |
 Fedor KirsanovPetya | Petya |
 Дмитрий ОрловMiron | Miron |
 Nikita Tarasovdvoretskiy | dvoretskiy |
 Aleksandr YatskoBagirov | Bagirov |
 Anton EldarovSergey Gennadevich | Sergey Gennadevich |
 Aleksandr Golovinpapa Peti | papa Peti |
 Yanina Studilinamama Peti | mama Peti |
| DDarya Svistunovamama Tomy | mama Tomy |
 Olivier Sioufrantsuzskiy povar | frantsuzskiy povar |
 Anna Rytovadevochka-poliglot | devochka-poliglot |
| AAlbert DryginNot listed | Not listed |