Hi Jake,,
I too have experienced what I describe as a translucent shadow person. One night while I was experiencing what I believe the in between state of Hypnagogia, I looked up near the window and saw a 4 foot translucent being in the room. It seem to be like glass or water in the shape of a shadow being. I can tell you it scared the you know what out of me. It seemed only wanting to observe me and actually had a facial expression that looked calm and content. 
But most of my experiences have been with the dark shadow people. I do recall a portal on the wall one night with the shadow beings about. The shadow person that most sticks out for me is the  silhouette of a male shadow being in the hallway. As I kept watching him he suddenly noticed he was being watched and collapsed into a triangular shaped and with an unbelievable amount of speed shot down the hallway towards my daughter’s room. That was very bizarre.  I can tell you over the last five years I have not experienced any shadow people or translucent beings. This almost creates an anxiety because I’m wondering if all the experiences I’ve had are it or will they return one day. I am also a big skeptic and not mentally challenged so it’s good to hear from other people who are or have experienced these situations. But one theory I have, is that these shadow people are not actual physical entities that enter your room at night but are projections representing a visit into our physical world to observe and possibly modify our situations.

Thanks for listening

Seen them alot man none off you are crazy only way I can describe them is like when your eye starts to get watery but in the shape of a figure passing by it blurs whatever is behind it

Don't think the white ones run anything to being honest...

I've seen them several times, and they seem more peaceful, less cold, if anything.
    First time was at a hospital at dusk, in an area between a dialysis centre and the operation rooms. It was about 4 feet tall, built like a child, and moved fast from the dialysis centre towards the operation rooms. I thought maybe it's the location, but I've not seen any there afterwards.Other times I've seen some they were behaving and "placed" just as other shadow people. Nothing much out of the ordinary, but I guess you just can't forget your first time.

The white ones come off less shy and more self-confident. They can have white smoke twirling off of them, leaving behind a short-lasting trail as they move. I've not seen any white shadow person stand still, they always seem to move.

The translucent ones are more common where I am now, and they are even more self-confident and bold than the white ones. They can be gorgeous to look at, seeing they're like crystal and deform everything behind them. It's not rare that they hang around on my furniture, or watch me sleep. Or just watch me in particular. They seem to know when I'm awake and when I'm not, sometimes even following me as I move from one area of the house to another. The cat sees them too and does not like them at all - he hisses loud as he can when he spots one. They seem to try to avoid having him alert us to them when they can and it's almost like a game by now.