Alma Pöysti as Tove Jansson

Krista Kosonen as Vivica Bandler

Shanti Roney as Atos Wirtanen

Joanna Haartti as Tuulikki Pietilä

Kajsa Ernst as Signe "Ham" Jansson

Robert Enckell as Viktor "Faffan" Jansson

Jakob Öhrman as Sam Vanni

Eeva Putro as Maya Vanni, f. London

Wilhelm Enckell as Lars "Lasse" Jansson

Liisi Tandefelt as Landlord

Emma Klingenberg as Maj-Lis Wirtanen

Juhana Ryynänen as Maj-Lis's Lover

Henrik Wolff as Chairman of the Scholarship Committee

Dick Idman as Erik von Frenckell

Simon Häger as Kurt Bandler

Kira-Emmi Pohtokari as Miss Poikolainen

Sanna Langinkoski as Kotiapulainen

Saga Sarkola as Actor at Studentteatern

Jon Henriksen as Actor at Studentteatern

Lidia Taavitsainen as Irja Koskinen

Paavo Järvenpää as Göran Schildt

Jan Korander as Theater Director's Assistant

Oskar Pöysti as Snufkin

Iida Kuningas as Thingumy

Heli Hyttinen as Bob

Fabian Silén as The Muddler

Willehard Korander as Moomintroll

Andrea Reuter as Journalist

Tage Fredriksson as Journalist

Jonathan Hutchings as Evening News's editor-in-chief

Ingrid André as Woman at French gallery

Sara Soulié as Coco

Emilia Neuvonen as Customer at the Bar

Helmi Jokinen as Customer at the Bar

Matti Bye as Customer at the Bar

Dennis Egbert as Customer at the Bar

Vilhelm Bromander as Customer at the Bar