How many movies have Ernst Karchow and Knut Hartwig acted in together?

They have worked on 2 movies together! Their first movie together was Damals (1943) and was their highest rated movie together. They have not worked together since Träumerei (1944).

Role
Vorsitzender der Einwanderungsbehörde (uncredited)
Role
Herr Januschko (uncredited)