"The story about Gustaf Dalén, the farm boy who became one of Sweden's greatest inventors."
Olof Bergström
as Gustaf Dalén
Eva Stiberg
as Elma Persson / Elma Dalén
Gunnar Björnstrand
as Henrik Kugelström
Kolbjörn Knudsen
as Anders Johansson
Erik Strandmark
as Mellander
Gunnar Sjöberg
as Gustaf De Laval
Åke Claesson
as Professor Wijkander
Märta Arbin
as Lovisa Johansson
Carl Ström
as Höjer
Hans Strååt
as Albin Dalén
Gunnar Olsson
as Anders Persson
Olle Hilding
as Bergquist
Ernst Eklund
as Bank Manager
Björn Berglund
as Pettersson
Gösta Prüzelius
as Engineer Gyllsdorf
Jan von Zweigbergk
as Nyquist
Ingvar Kjellson
as Engineer Borg
Rolf Huhtaniemi
as Young Gustaf Dalén
Gösta Folke
Director
Erik Wästberg
Book
Gardar Sahlberg
Writer
Sten Söderberg
Rune Lindström
