Georg Rydeberg

Hans Brede

Karin Ekelund

Kristina Brede

Åke Ohberg

Jan Almer

Börje Mellvig

Docent Högberg

Anders Frithiof

Director General Lind

Signe Wirff

Miss Borg

Ivar Kåge

The Doctor

Sten Hedlund

Major Högberg

Gun Adler

Nurse in Brede's Home (uncredited)

Gerda Björne

Woman at the Party (uncredited)

Karl Borg

Doctor (uncredited)

Edvard Danielsson

Priest (uncredited)

Solveig Ekelund

Woman in Laboratory (uncredited)

Åke Engfeldt

Dancing Partner (uncredited)

David Erikson

Beckman, Engineer (uncredited)

Margareta Fahlén

Woman at the Party (uncredited)

Arthur Fischer

Doctor (uncredited)

Erik Forslund

Gardener (uncredited)

Gösta Grip

Man in Laboratory (uncredited)

Helga Hallén

Nurse (uncredited)

Ann-Marie Hellgren

Nurse (uncredited)

Mary Hjelte

Nurse (uncredited)

Douglas Håge

Ticket Salesman (uncredited)

Lillebil Kjellén

Woman at the Party (uncredited)

Birgit Linder

Woman in Laboratory (uncredited)

Millan Lyxell

Nurse (uncredited)

Rolf Sandberg

Man in Laboratory (uncredited)

Bert Sorbon

Man in Laboratory (uncredited)

Nils von Brömssen

Doctor (uncredited)

Eric von Gegerfelt

Man in Laboratory (uncredited)

Linnea Witzén

Nurse (uncredited)

Birger Åsander

Station Inspector (uncredited)

Robert Ryberg

Audience at the Concert (uncredited)