How many movies have Rudolf Klein-Rogge and Theodor Loos acted in together?

They have worked on 11 movies together! Their first movie together was Die Nibelungen: Siegfried (1924) while their highest rated movie together was Metropolis (1927). They have not worked together since Giorgio Moroder's Metropolis (1984). They are most known for their drama films together.

Role
Direktor Bremer
Role
Dr. Elken, Hausarzt
Role
Kriminalrat Brandt
Role
Geheimrat Rüdiger