How many movies have Katrin Sass and Rainer Sellien acted in together?

They have worked on 18 movies together! Their first movie together was Schandfleck - Der Usedom-Krimi (2015) while their highest rated movie together was Nachtschatten - Der Usedom-Krimi (2020). They have not worked together since Schlepper - Der Usedom-Krimi (2023). They are most known for their crime films together.