Rex is digging up facts...
Irina Mazing
Little donkey (voice)
Lidiya Kataeva
Butterfly (voice)
Vsevolod Larionov
Narrator (voice)
Klara Rumyanova
Caterpillar (voice)
Vladimir Osenev
Crocodile (voice)
Mikhail Kamenetskiy
Tatyana Makarova
