| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Andrew Brenner | Crew | Writing | Writer | 1 |
Jennifer Duffy | Crew | Production | Casting Director | 13 |
 Steve Box | Crew | Directing | Director, Screenplay | 13 |
Terry Davies | Crew | Sound | Music Consultant | 13 |
 Tove Jansson | Crew | Writing | Original Story | 13 |
Darren Robbie | Crew | Directing | Director | 3 |
Jay Grace | Crew | Directing | Director | 3 |
Mark Huckerby | Crew | Writing | Screenplay | 13 |
Nick Ostler | Crew | Writing | Screenplay | 13 |
John Woolley | Crew | Production | Producer | 13 |
Samuli Kosminen | Crew | Sound | Original Music Composer | 13 |
Lars Jansson | Crew | Writing | Original Story | 13 |
 Melli Maikkula | Crew | Crew | Dramaturgy | 13 |
Marika Makaroff | Crew | Art | Creative Director, Executive Producer, Creator | 24 |
Avgousta Zourelidi | Crew | Directing | Director | 4 |
Pekka Kuusisto | Crew | Sound | Original Music Composer | 13 |
Virpi Immonen | Crew | Sound | Music Supervisor | 13 |
Nigel Davies | Crew | Directing | Director | 15 |
Richard Fawdry | Crew | Art | Storyboard Artist | 1 |
Hannah George | Crew | Writing | Writer | 2 |
Tony Cooke | Crew | Writing | Writer | 1 |
Diane Whitley | Crew | Writing | Writer | 12 |
 Arja Saijonmaa | Cast | Actress | Teatterirotta Emma (voice) | 2 |
 Elina Knihtilä | Cast | Actress | Tuu-tikki (voice) | 2 |
 Jennifer Saunders | Cast | Actress | Mymble | 1 |
 Joonas Nordman | Cast | Actor | Muumipeikko (voice) | 52 |
 Julian Barratt | Cast | Actor | Mr Brisk | 1 |
 Lotta Lindroos | Cast | Actress | Mymmeli (voice) | 1 |
 Satu Silvo | Cast | Actress | Muumimamma (voice) | 52 |
 Taisto Oksanen | Cast | Actor | Puistonvartija (voice) | 1 |
 Ville Haapasalo | Cast | Actor | Muumipappa (voice) | 52 |
 Kiti Kokkonen | Cast | Actress | Pikku Myy (voice) | 52 |
 Olavi Uusivirta | Cast | Actor | Nuuskamuikkunen (voice) | 52 |
 Peter Kanerva | Cast | Actor | Herra Vilijonkka (voice) | 1 |
 Richard Ayoade | Cast | Actor | The Ghost (voice) | 2 |
 Chance Perdomo | Cast | Actor | Snork | 5 |
 Alina Tomnikov | Cast | Actress | Niiskuneiti (voice) | 52 |
 Ali Jahangiri | Cast | Actor | Pikku Kummitus (voice) | 1 |
Taina West | Cast | Actress | Ääni (voice) | 2 |
 Kristiina Halttu | Cast | Actress | Rva Vilijonkka (voice) | 3 |
 Hector | Cast | Actor | Piisamirotta (voice) | 6 |
 Markku Haussila | Cast | Actor | Nipsu (voice) | 52 |
Lauri Ketonen | Cast | Actor | Tit-ti-uu (voice) | 1 |
Ella Pyhältö | Cast | Actress | Various (voice) | 1 |
Miiko Toiviainen | Cast | Actor | Miska (voice) | 1 |
Yasmine Yamajako | Cast | Ninni (voice) | 1 | |
| Person | Type | Job | Role(s) | Episodes |
