Kalle Blomkvist and his friends intervene when a professor and his little son Rasmus are kidnapped.
Lars-Erik Lundberg
Kalle Blomkvist
Peder Dam
Anders Bengtsson
Inger Axö
Eva-Lotta Lisander
Eskil Dalenius
Rasmus Rasmusson
Sam Stadener
Sixten
Ulf Söderberg
Benka
Göran Ryrbäck
Jonte
Sigge Fürst
Policeman Björk
Elof Ahrle
Nicke Karlsson
Ulf Johansson
Peters
Björn Berglund
Prof. Rasmusson
Arne Källerud
Kalle's Father
Solveig Hedengran
Kalle's Mother
Britta Brunius
Mia Lisander
