Markku Toikka

Antti Rahikainen

Aino Seppo

Eeva Laakso

Esko Nikkari

Inspector Pennanen

Hannu Lauri

Heinonen

Olli Tuominen

Detective Snellman

Matti Pellonpää

Nikander

Harri Marstio

Singer in the Restaurant Band

Pedro Hietanen

Pianist of the Restaurant Band

Hannu Lemola

Drummer of the Restaurant Band

Kari Sorvali

Sormunen

Pentti Auer

Kari Honkanen

Asmo Hurula

Bartender

Risto Aaltonen

Painter

Tarja Keinänen

Mrs. Pennanen

Tiina Pirhonen

Maid

Heljä Angervo

Performer at the Opera (uncredited)

Juuso Hirvikangas

Man at Police Station (uncredited)

Jorma Hynninen

Performer at the Opera (uncredited)

Kalervo Katajavuori

Police Officer (uncredited)

Kari Kuoppa

Performer at the Opera (uncredited)

Jouko Lumme

Police Photographer (uncredited)

Pirjo Luoma-aho

Sonja's Co-Worker (uncredited)

Jaakko Ryhänen

Performer at the Opera (uncredited)

Mikael Sievers

Painter's Helper (uncredited)

Aino Takala

Performer at the Opera (uncredited)

Taru Valjakka

Performer at the Opera (uncredited)

Tapani Valtasaari

Performer at the Opera (uncredited)

Merja Wirkkala

Performer at the Opera (uncredited)