Jönssonligan & den svarta diamanten

Sickan, the leader of the criminal Jönsson gang is incarcerated in a mental institution, attended by Dr M.A. Busé, who admire a handbook in crime that Sickan has been writing. Blackmailed by the nefarious banker Wall-Enberg, Dr Busé and Sickan's partners Vanheden and Dynamite-Harry execute Sickan's plan of stealing the valuable Black Diamond of the Romanovs from the National Museum.

• Hans Åke GabrielssonDirector
• Rolf BörjlindWriter
• Hans Åke GabrielssonWriter
• Thomas LindahlOriginal Music Composer

• Ulf BrunnbergRagnar Vanheden
• Björn GustafsonDynamit-Harry
• Peter HaberDr. Max Adrian Busé
• Birgitta AnderssonDoris
• Elias RingquistLillis
• Björn GranathLohman
• Pontus GustafssonAndersson
• Bernt LindqvistThe Chief of Police
• Per GrundénWall-Enberg
• Weiron HolmbergBiffen Johansson
• Lena T. HanssonBusé's secretary
• Rikard WolffCount Romanoff