Heimo Haitto
Olavi
Regina Linnanheimo
Anna
Aku Korhonen
Professor
Jalmari Rinne
Antti
Ossi Elstelä
Jouko Ilvonen
Kauko
Helinä Sirkiä
Helinä
Kaarlo Marjanen
Narrator (voice) (uncredited)
Anni Hämäläinen
Kaisa (uncredited)
Lasse Lagus
Kalle (uncredited)
Irja Elstelä
Greta (uncredited)
Leena Valkeala
Leena Valkeala (uncredited)
William Reunanen
William Reunanen (uncredited)
Taisto Lindegren
Taisto Lindegren (uncredited)
Fiinu Autio
Fiinu Autio (uncredited)
Olavi Suominen
Olavi Suominen (uncredited)
Leo Sarri
Leo Sarri (uncredited)
Aarre Koivisto
Aarre Koivisto (uncredited)
Olavi Tuomi
Olavi Tuomi (uncredited)
Arvi Järvinen
Arvi Järvinen (uncredited)
T.J. Särkkä
Toivo Särkkä (uncredited)
Varma Lahtinen
(uncredited)
Jaakko Furman
(uncredited)
Rosi Rinne
Kalle's Mother (uncredited)
Uuno Montonen
(uncredited)
Aku Käyhkö
(uncredited)
Artturi Laakso
(uncredited)
Martti Similä
(uncredited)
Boris Sirpo
(uncredited)
Cyril Szalkiewicz
(uncredited)