The creators of this series originally intended to set it in an earlier decade - the 1960's - but the BBC objected on the grounds that this would cost more than a contemporary setting. The writers were told that it was deemed too expensive to hire 'period-appropriate' clothes, cars, props and locations; when they pointed out that the Kessler character would be quite ancient by the dawn of the 1980's (not to mention further removed from the events of "Secret Army"), the BBC executives apparently replied:"who cares, nobody will notice". Thus the cast and those behind the camera began the project with legitimate misgivings.
In "Secret Army", Kessler had a romantic relationship which made the character three dimensional and showed that even a cruel Nazi bigot had human dimensions. At the time, some people at the BBC felt that this factor might inspire too much sympathy for Kessler. Perhaps the Corporation's fear of the SS man being hero-worshipped explains why his loving companion makes no appearance in the subsequent series?
In "Secret Army", Kessler had a romantic relationship which made the character three dimensional and showed that even a cruel Nazi bigot had human dimensions. At the time, some people at the BBC felt that this factor might inspire too much sympathy for Kessler. Perhaps the Corporation's fear of the SS man being hero-worshipped explains why his loving companion makes no appearance in the subsequent series?