So in thinking about topics like Lea, Christos, and Nic, I think I might have put a few things together... The main inspiration for my conclusions is how during the conversation between Nic and Harry before the Rumble at the
Shedd, Nic/Andariel seemed genuinely concerned about Harry's account of Hellfire being used at Arctis Tor, and considers such a thing a "contamination" if it's a member of the "Order."
Contamination is the key word here. I am thinking that most of the “Black Council” operatives that Harry has a chance to interact with aren’t actually card carrying “members” but rather are contaminated somehow into doing things along the lines of what they want. Contaminated by what? Some kind of Outsider influence. Vittorio Malvora was flat out possessed by an outsider, but maybe the same is true for pretty much every operative we have come across… Others that are somehow contaminated, and possibly by outsiders (to some degree) would be… Aurora, Lea, Vittorio, and some more that deserve more elaboration…
Thorned Namshiel might have been contaminated, but I’m thinking that Tessa is actually the major vector there, and he was working on her orders.
Lord Raith might be contaminated, since he is so magically slippery, and when he became Neutralized, the “Black Council” had to act to reassert their sway over the White Court, hence the events of White Night. He might actually be a “Card Carrying Member” considering Eb thought something “big” was protecting him.
I think the Red King was “contaminated.” 2 pieces of evidence towards this are that Harry thought he might have been going mad, and his hand reattaching was a “super vampire” move that seemed to closely parallel the “super ghoul” stuff we saw in White Night…
Justin is suspect since he was looking for candidate minions that might have power over Outsiders and he was obviously doing some pretty nasty black magic.
Finally, and this is the big controversial one, Harry might be contaminated to some degree. He is still tainted with the Shadow of HHWB, and something about the reveal in GS makes me suspect that HHWB let Harry win that fight, and that maybe he actually got some kind of influence over Harry out of the encounter.
ETA: Elaine was forced to drink that blood by Justin, and she ran to Aurora for help, so she might be the Vector for her... helps the Elaine=Kumori theories.
ETA2: I ment to mention that Christos may be contaminated, and thus be mucking things up without being a conspirator.