1 Season
50 Episode
The Unstoppable Yellow Yeti - Season 1 Episode 34 Monster Mashup
Osmo and Rita join Gustav to celebrate his ancestors at the Monster Graveyard, only to wake them up by sharing spooky tales. Now they must tell the spookiest tale ever to escape.
- Country : Finland, France, United Kingdom
- Genre : Animation, Comedy
- Director : Anttu Harlin, Joonas Utti
- Cast : Nadine Marshall, Emma Ballantine, Caoimhe Judd, Rasmus Hardiker, Amy-Leigh Hickman, Paul Tylak
