They are currently developing a new type of mine at Fredrik's workplace. The head of the company is a young woman, Eva Seman.
Sonja Stjernquist
as Eva Seman
Egon Larsson
as Staffan Torell
Sten Gester
as Allan Bergsten
Åke Söderblom
as Fredrik Berg
Hjördis Petterson
as Olga Seman
Mary Rapp
as Beda
Siv Ericks
as Edith Jansson
Torsten Lilliecrona
as furiren
Carl-Gustaf Lindstedt
as polismästaren
Harry Ahlin
as Ernst Jansson
Ragnar Arvedson
as översten
Hans Strååt
as kaptenen
