Robin Angeleyes

Small. Shy. And we're not 100% sure what gender this kid is.

Honestly, we could find out. I mean, Sol's a telepath, Hugo has X-ray vision, Castiel has spells, Lief could just do a DNA test... heck, Smiley could turn Robin's clothes into a pile of transparent chicken feathers, and I bet Baku could just explode them. Besides, we're picking dorm rooms. There's two wings. Robin has to pick one... although that isn't a perfect test, since Sol... well... is Sol.

But we don't know yet. But Robin's making friends with Smiley, and Hugo and Lief are looking at Robin as a potential roomie, depending on that chromosome set. So we may know eventually.

And might even find out what this mysterious kid is doing here.