SitWoo
I don't know him. But if he hates the surface world, that might check out. Reed Richards has that big tech money. Reed and Sue probably spend half their lives scubadiving.
That I don't know. I guess if someone (or something) ripped open the fabric of reality, other things might fall through. Not everything inside Westview was something Wanda brought in, or meant to brought in. And the stragglers weren't all there to investigate.