With the help of a corrupt diplomat the Olsen Gang plans to rob the World Bank, with help from the re-schooled Dynamite-Harry, now a computer expert.

Arve Opsahl
as Egon Olsen

Carsten Byhring
as Kjell Jensen

Sverre Holm
as Benny Fransen

Aud Schønemann
as Valborg Jensen

Harald Heide-Steen Jr.
as Data-Harry

Henki Kolstad
as Mester Hansen

Ove Verner Hansen
as Biffen

Sverre Wilberg
as Hermansen

Øivind Blunck
as Holm

Arne Aas
as Larsen