Peter Heinrich Brix

as Konrad Kühn

as Herr Schindelmeister

as Ubbo Heide (1 episode)

as Henning Frenzen (1 episode)

as Prof. Kopernikel (2 episodes)

as Rudi "Rosa" Struttmann

as Siggis Vater

as Klaas

as Hein Schüpp

as Robert Hellkamp

as Hans-Uwe Petersen

as Carl Sievers (23 episodes)

as Self (1 episode)

as Self (2 episodes)

as Hans-Uwe Petersen

as Self (1 episode)

as Self (1 episode)

as Paule (1 episode)

as Self (1 episode)

as Lothar Seidel (1 episode)

as Achim Kaiser (8 episodes)

as Kurt Biesen (1 episode)

as Prestin

as Self (1 episode)