"Dr. Glas is visited by Mrs. Gregorius who lives in an unhappy marriage and decides to help her, by any means necessary."
Georg Rydeberg
as Dr. Glas
Irma Christenson
as Helga Gregorius
Rune Carlsten
as Rev. Gregorius
Hilda Borgström
as Kristin
Gösta Cederlund
as Markel
Gabriel Alw
as Martin Birck
Sven Bergvall
as Lowenius
Gösta Grip
as Klas Recke
Guje Lagerwall
as Eva Mertens
Sven d'Ailly
as Holm
Artur Cederborgh
as the head waiter
Theodor Olsson
as Helga's father
Helge Mauritz
as policeman
Eric Laurent
Egil Holmsen
as a student, Helga's childhood sweetheart
Anna-Lisa Fröberg
as Helga's mother
Karin Lannby
as Agnes Holm
Lillebil Kjellén
as Lowenius' daughter
Erik Forslund
as Gentleman in Kungsträdgården (uncredited)
Hilmer Peters
as Wardrober (uncredited)
Hortensia Hedström
as Guest at the restaurant (uncredited)
Gustaf Hedström
Gun Adler
as Gregorius' housemaid (uncredited)
Carl Ericson
as Member of the social board (uncredited)
Nina Scenna
as Waitress at the Water shop (uncredited)
Olle Janson
as Young man with Lowenius at the dinner (uncredited)
Einar Groth
as Violin player (uncredited)
Karl-Erik Alberts
Director of Photography
Lars Tessing
Screenplay
Tage Holmberg
Editor
Torsten Lundqvist
Director
Sven Rüno
Original Music Composer
Hjalmar Söderberg
Novel
Bertil Duroj
Production Design
Alva Lundin
Title Designer
Erik Whiten
Makeup Artist
Nils Kyndel
Music Arranger
Sten Dahlgren
Assistant Camera
Unit Manager
Anna-Stina Wåglund
Script Supervisor
Åke Nilsson
Sound
Stellan Claësson
Production Manager