Kalle Blomkvist and his friends intervene when a professor and his little son Rasmus are kidnapped.
as Kalle Blomkvist
as Anders Bengtsson
as Eva-Lotta Lisander
as Rasmus Rasmusson
as Policeman Björk
as Nicke Karlsson
as Peters
as Prof. Rasmusson
as Kalle's father
as Kalle's mother
as Mia Lisander
as Stenberg
as Blom