Bloodied Bag (Earth-1993)

"Watch out. The gap in the door... It's a separate reality. The only me is me. Are you sure the only you is you?"

- - Bloodied Bag

The Bloodied Bag was a mysterious entity that inhabited the first room in the never-ending hallway. It was accompanied by multiple cockroaches nearby, and attempted to warn Agent Phil Coulson about the dangers of the hallway and parallel universes.