User blog comment:Schiffy/BG9: Man, Machine, or Something Else Entirely?/@comment-5657895-20130918062424

He acts like a machine, or a Vulcan kind of entity. All logic, facts, and brains, but little emotional care. He's easily the most cruel Quincy we've seen so far except for maybe Yhwach, and that's saying a lot, given Nodt is a nightmare, Bercci is a blood knight, and Bambietta is a nut job.

I doubt we'll be given a lot of detail to those Quincy and there origin as individuals. Some of them are just meant to be over the top and strange. NaNaNa and Mask are just like him.