Third part of the trilogy. Vaska again is visiting his grandfather living in Bohemian Forest and understands the importance of guarding nature.
| Actor | Role |
|---|---|
 Gustáv ValachHajný Straka | Hajný Straka |
 Tomáš HolýVašek | Vašek |
 Jana BrejchováJarmila Straková, Vaskova maminka | Jarmila Straková, Vaskova maminka |
 Josef KemrZmiják Pernikár | Zmiják Pernikár |
 Václav SloupNot listed | Not listed |
 Ladislav FrejNot listed | Not listed |
 Jiří PleskotNot listed | Not listed |
 František HanusNot listed | Not listed |
| EEva JirouškováNot listed | Not listed |
| AAdolf FilipNot listed | Not listed |
 Jan PohanNot listed | Not listed |
| BBlanka KřížováNot listed | Not listed |
 Vítězslav JandákNot listed | Not listed |
| ZZdeněk JarolímekNot listed | Not listed |
| VVáclav KaňkovskýNot listed | Not listed |
| VVěra KrpálkováNot listed | Not listed |