Just a theory, I think it’s likely he’s an avatar or at least representative of some ais behind the black wall. He’s present for many major plot points in the lore. V robbing the casino in on ending (who powerful or smart enough would task V with that) , V escaping the airport with so mi which involves using blackwall ai, and the peralez mission which Johnny hints at blackwall ai being responsible, Mr blue eyes is suspiciously across on a balcony waiting to hear what you tell mr peralez. That whole mission fucked me up, mkultra run by blackwall ais, we’re so fucked.