Roloff (played by Jürgen Prochnow) is a protagonist in Knast.
Ruth Jeske (played by Almut Eggert) appears in Knast.
Else (played by Inge Wolffberg) appears in Knast.
Heidi (played by Irmgard Riessen) appears in Knast.
Vater Blunk (played by Gerhard Wollner) appears in Knast.
Bräuner (played by Wilfried Herbst) appears in Knast.
Kneipenwirt (played by Klaus Sonnenschein) appears in Knast.