The Master Detective Lives Dangerously

Leif Nilsson

Kalle Blomkvist

Sven Almgren

Anders Bengtsson

Birgitta Hörnblad

Eva-Lotta Lisander

Richard Paulson

Sixten

Lasse Starck

Benka

Sten Thunborg

Jonte

Sigge Fürst

Policeman Björk

Nils Hallberg

Gren's Debtor

Georg Skarstedt

Karl August Gren

Siv Ericks

Eva-Lotta's Mother

Erik Strandmark

Eva-Lotta's Father

John Norrman

Fredriksson

Ragnar Arvedson

Crime Commissioner Berg

Hjördis Petterson

Mrs. Karlsson

Carl-Axel Elfving

Journalist

Birger Lensander

Sixten's Father

Eivor Landström

Sixten's Mother

Bengt Blomgren

Doctor Forsberg