They are demented little fuckers. They're more like fucking ghosts straight from Supernatural or some shit!
(Which is a great show, made in America. You should watch it.)
But it's like he's talking to himself and he made up those creatures so he could always have someone to talk to. I don't know when they came along, but I don't remember them when I was a kid. Maybe he made them after all of his colonies left him, and because of the lonliness he felt he made them up.
Either way, it's creepy as fuck and also kind of sad, in a way.
But he needs to grow out of that shit! It's for little kids!
Next.