Esa Pakarinen as Pekka Puupää

Masa Niemi as Pätkä

Siiri Angerkoski as Justiina Puupää

Olavi Virta as Kalevi Vaski

Ruth Johansson as Eeva Riuku

Veikko Linna as Armas Kotivalo Riuku

Martti Seilo as Dr. Linssi

Helmi Lehosti as Mrs. Riuku

Laila Rihte as Mrs. Pykälä

Elli Ylimaa as Mrs. Linssi

Sasu Haapanen as Aadolf Muikku

Erkki Uotila as Pykälä

Nestori Lampi as (uncredited)

Maire Hyvönen as (uncredited)

Heimo Lepistö as (uncredited)

Juhani Kumpulainen as (uncredited)

William Reunanen as (uncredited)

Tauno Majuri as (uncredited)

Rauha Rentola as (uncredited)

Thure Bahne as (uncredited)

Aarne Laine as (uncredited)

Helvi Aunio as (uncredited)

Auvo Nuotio as (uncredited)

Sointu Kouvo as (uncredited)

Arvo Kuusla as (uncredited)

Martta Kinnunen as (uncredited)

Eino Noponen as (uncredited)

Annikki Linnoila as (uncredited)

Armas Jokio as (uncredited)

Helvi Järveläinen as (uncredited)

Katri Linna as (uncredited)

Vilho Kekkonen as (uncredited)