Erik Balling	...	(Director)
Erik Balling, Henning Bahs	...	(Writer)
Ove Sprogøe	...	Egon Olsen
Morten Grunwald	...	Benny Frandsen
Poul Bundgaard	...	Kjeld Jensen
Kirsten Walther	...	Yvonne Jensen
Jes Holtsø	...	Børge Jensen
Lene Brøndum	...	Fie
Bjørn Watt-Boolsen	...	Lensbaron Ulrik Christian Frederik Løvenwold (as Bjørn Watt Boolsen)
Ove Verner Hansen	...	Frits
Ejner Federspiel	...	Joachim
Axel Strøbye	...	Kriminalassistent Jensen
Ole Ernst	...	Kriminalbetjent Holm
Buster Larsen	...	Chefen
Bent Mejding	...	Dirigenten
Freddy Koch	...	Den Hollandske herre
Else-Marie	...	Kokkepigen

Summary: Egon and the gang are hired to stage a robbery of an antique Chinese vase for an economically challenged baron. Naturally they fooled, which infuriates Egon. The gang tries to get back at the baron by switching the vase with a cheap Hong Kong copy. One attempt is made during the barons hunting party, where Egon ends up being bricked up in the catacombs. In another attempt, the gang has to coordinate breaking through several walls at The Royal Theater in Copenhagen with the "Elverhøj" overture.