15 mins | Animation | Jan. 31, 1980
15 mins | Animation | Jan. 31, 1980
| Producers | Sverdlovskoe televidenie |
| Original title | Муми-дол: Всё дело в шляпе |
| Directors | Anatoliy Alyashev |
| Writers | Anatoliy Alyashev, Tove Jansson |
as Fröken Snork (voice)
as Cuckoo (voice)
as Moomin troll (voice)
as Moomin dad (voice)
as Moomin mom (voice)