So I have a player that died. Except he didn't really just die - he was kidnapped and vivisected, and returned to the party later in pieces, approximately 15 minutes after death. It was a very 'What's in the Box!?' moment.
So the Inquisitor decided he wanted him turned into a servitor, in the hope that his memories of the event were still intact, as he was killed by the people they have spent months looking for.
I give you the Awakened Servitor class. Tell me what you think; this is a first draft. I'm taking a few liberties with it, but there is precedent for this in Eisenhorn.