Mästerdetektiven Blomkvist

Olle Johansson

Kalle Blomkvist

Sven-Axel Carlsson

Anders Bengtsson

Ann-Marie Skoglund

Eva-Lotta Lisander

Bernt Callenbo

Sixten

Ulf Törneman-Stenhammar

Benka

Roberto Günther

Jonte

Henrik Schildt

Uncle Einar

Sigge Fürst

Constable Björk

Carl Reinholdz

Fredrik med foten

Fritiof Billquist

Detective Inspector Stenberg at the State Police

Magnus Kesster

Tore Krok, alias Arthur Berg

Peter Lindgren

Ingvar Redig, alias Tjommen

Solveig Hedengran

Mia Lisander

Björn Berglund

Kalle's Father

Gösta Jonsson

Erik Lisander

Anna-Stina Wåglund

Kalle's Mother

Birger Sahlberg

Constable on Duty at the Police Station (uncredited)

Hugo Tranberg

The Hotel Porter (uncredited)