In a third part of the trilogy Mishka, Dimka and Lenka are graduating high school and meet the adult life.
| Actor | Role |
|---|---|
 Semyon TreskunovMishka Khrustalev | Mishka Khrustalev |
 Egor KlinaevDimka Terentyev | Dimka Terentyev |
 Anfisa VistingauzenLenka Karaseva | Lenka Karaseva |
 Oleg BlinovGrisha | Grisha |
 Ilya DeniskinNot listed | Not listed |
 Anastasiya DobryninaNot listed | Not listed |
 Ilya LutsakNot listed | Not listed |
 Gleb MakhankovNot listed | Not listed |
 Andrey MerzlikinKGB Major | KGB Major |
 Darya RudenokNot listed | Not listed |
 Stanislav RumyantsevNot listed | Not listed |
 Valentin SadikiNot listed | Not listed |
 Oleg SbrodovNot listed | Not listed |
 Danil SteklovPin | Pin |
 Elena Tokmakova-GorbushinaNot listed | Not listed |
 Timofey TribuntsevOleg Vityushkin | Oleg Vityushkin |
 Mark TyurikovNot listed | Not listed |
 Alisa-Katerina AfanasyevaNot listed | Not listed |
 Maksim Ivanov-MareninEdik | Edik |
 Mariya LisovayaNot listed | Not listed |
 Nataliya BichanNot listed | Not listed |
 Alisa SuprunNot listed | Not listed |
 Evgeniya GlotovaNot listed | Not listed |
 Mikhail Konovalovman with flowers | man with flowers |
 Evgeny AntropovNot listed | Not listed |
| KKseniya GaevskayaNot listed | Not listed |