Lauritz Falk as Iben Holt

Irma Christenson as Inger Berg

Elof Ahrle as Rödluvan

Stig Järrel as Otto Frank

Gunnar Björnstrand as Dr. Hahn

Marianne Aminoff as Marion

Ernst Eklund as Professor Fors

Torsten Winge as Jacob

Börje Mellvig as Dr. Fritz Lenner

Rune Halvarsson as Johnny

Olle Hilding as Olof

Helge Mauritz as lokföraren

Erik Hell as Parachute Saboteur

Erik Strandmark as Corporal

Stig Olin as Parachute Saboteur

Gabriel Rosén as officer i ockupationsmakten

Birger Sahlberg as rörmokare Gustav W. Tobiasson

Olle Janson as en av Ibens vänner på restaurangen

Mimi Nelson as Girl at Bar

Helge Andersson as vaktmästare hos professor Fors

Gösta Holmström as ockupationssoldat vid järnvägsstationen