An adaptation of the book by Verna Aardema
| Directing | Gene Deitch | Director |
| Production | Morton Schindel | Executive Producer |
| Production | Zdenka Deitchová | Production Manager |
| Visual Effects | Oldřich Haberle | Animation |
| Writing | Verna Aardema | Book |
| Art | Miluše Hluchaničová | Art Direction |
| Writing | Diane Dillon | Book |
| Writing | Leo Dillon | Book |
| Sound | Václav Kubica | Original Music Composer |
| Camera | Jaroslava Zimová | Director of Photography |
| Editing | Gaia Vítková | Editor |
| Writing | Gene Deitch | Screenplay |
