Once my group finishes with their current adventure, I was thinking of running Tattered Fates. Now, I want to add some stuff and I thought of Disciples of the Dark Gods. In the Thorian section they describe an Inquisitor Orannon, perhaps the most powerful Thorian Inquisitor in the Calixis sector. It says that he spends most of his time in his estates on Quaddis.

I'm at a loss to see how his agents could get involved, if tangentially, in the adventure as I don't know even what they would be dong. My question is, how would an Inquisitor spend his time on Quaddis? Would he be interested in planetary politics at all?

He would most likely spend his days reviewing reports that his agents in the field bring him, reading old texts. And well, if the regional politics include some form of heresy it would most likely attract the attention of an Inquisitor.

He may well have agents in many busy places or trailing important people. Any of which could flag up the Acolytes as potential trouble / allies (depending on how discrete they are).