Inga Tidblad

Cathérine von Wismar

Holger Löwenadler

Carl Gustav von Wismar

Lauritz Falk

Lieutenant Rehusen

Erik Hell

Möllersten

Stig Järrel

Riddercrantz

Erik 'Bullen' Berglund

Tarnow, Russian

Hugo Björne

Adlerhjelm

Björn Berglund

Manderberg

Emil Fjellström

skipper Nordström, pilot

Frank Sundström

Gustav III

Wiktor Andersson

man at the Blue Gate Inn (uncredited)

Olga Appellöf

Archdeacon at Cathérine's musical soiree (uncredited)

Josua Bengtson

conspirator on board the ship (uncredited)

Ann-Margret Bergendahl

lady in von Wismar's park (uncredited)

Julie Bernby

maid at the Blue Gate inn throwing out the contents of a chamberpot (uncredited)