I think it's Wendy. He voted for Saddam the second time around when it was almost a sure thing he was going to be lynched, the other choice was Enigma, a probable alien, he did not vote for blanko so far as I can tell. Also many of the others you are mentioning were specifically targeted by Blanko early on, when there was no reason to do so, this leads me to think those people may not be aliens.
I went back and reviewed who the two known wolves voted for, and who they suspected, in order to rule out certain people. It's not a sure thing but Wendy was never voted on nor suspected by either of them.