I've always assumed there was an actual human really named Hans Brackhaus, plus Lowfyr polymorphed into a human that looks like Hans Brackhaus, various other human(oid) S-K "special assets managers" using the name Hans Brackhaus, and all sort of other movers in the German shadows who were just using the name Hans Brackhaus.
Which one of these, if any, my team of `runners was interacting with generally wasn't something I concerned myself with knowing. Only ask questions pertinent to carrying out the job, never ask why they're hiring you for the job and never ask who is hiring you for the job. One of the things that annoys me about some of the official modules is that the client is way too forthcoming with their name and motivation. I don't want to know.