Alyosha Ptitsyn, a third-grader decides that he wants to improve his personality and immediately starts to act.
| Actor | Role |
|---|---|
 Nadezhda RumyantsevaGalya | Galya |
 Aleksandr MikhajlovTikhon Ivanovich | Tikhon Ivanovich |
 Natalya SeleznyovaSashenka | Sashenka |
 Valentina Sperantovagranny Sima | granny Sima |
 Lidiya SukharevskayaLieutenant Sergienko | Lieutenant Sergienko |
| VViktor KargopoltsevAlyosha | Alyosha |
 Anatoli Abramovporter (uncredited) | porter (uncredited) |
 Olga PyzhovaAlyosha's grandma | Alyosha's grandma |
 Yuri BublikovAnatoliy Andreyevich | Anatoliy Andreyevich |
 Tamara AlyoshinaNatalya Fyodorovna | Natalya Fyodorovna |
 Roza MakagonovaNot listed | Not listed |
| SStepan KolchuginNot listed | Not listed |
| BBoris VasilyevNot listed | Not listed |
 Gennadi KhudyakovNot listed | Not listed |
 Ivan NazarovNot listed | Not listed |
 Leonid GallisNot listed | Not listed |
 Anna LisyanskayaNot listed | Not listed |
 Ekaterina SavinovaNot listed | Not listed |
 Valentina UshakovaNot listed | Not listed |
 Rudolf FurmanovNot listed | Not listed |
 Lev StepanovNot listed | Not listed |
| AAlexandra TrishkoNot listed | Not listed |
 Aleksandra MatveevaNot listed | Not listed |
| SSergei PodmasteryevGenka | Genka |