"Naalen" is the title character in the film, a ruthless black market kingpin whose wake inevitably follows a series of other crimes. How "Naalen" got his strange nickname will not be revealed here, but it can be hinted that it has a close connection to the precious and rare commodity he deals in his "business": insulin.
Ebbe Rode
Lorentzen, alias "Naalen"
Tove Maës
Gudrun, laboratorieassistent
Gunnar Lauring
Larsen, kriminalkommissær
Hans-Henrik Krause
Alex Birk, stud. med.
Louis Miehe-Renard
Oscar, Naalens håndlanger
Jørn Jeppesen
Stefan, Naalens håndlanger
Sigrid Horne-Rasmussen
Værtinden
Ove Sprogøe
Helmer, kriminalassistent
Tove Bang
Fru Larsen
Lise Thomsen
Danselærerinde
Hans Egede Budz
Leder på insulinfabrikken
Tavs Neiiendam
Lægen
