Drewbear
Remember that staring gasmask guy thing? I still can't quite see a SCP to hook this on to, but I had some other images start appearing that you might find useful if/when you write this up, in the format of description of various instances:
"obese black female with keloid scarring on her forearms, wearing a Guy Fawkes mask"
"elderly Asiatic male, wearing a medieval Crusader's helmet."
"emaciated Caucasian of indeterminate gender (legs crossed), wearing a gas mask"
"male Pacific Islander with extensive tattoos in the Maori style, wearing the head of a Chinese parade lion"
"male Latino with large breast implants, wearing a space suit helmet"
Appearing singly, but always nude, always staring at you in the manner that you described in the thread.
I might come up with more stuff, if you'd be interested in possibly collaborating?
Photosynthetic:
…If this is the kind of thing we'd be working with, then hell yes I would be interested in collaborating.
I still feel somehow that Gasmask Thing should be an object on his/its own. These others, though… I'm at work right now and can't really afford to let my imagination run too wild (lest the annotations on our specimens start getting really weird), but I want to let this idea percolate a bit. I'll get back to you soon. You do the same, if any other inspiration comes knocking. :D
Drewbear:
You know, someone just posted a gasmask picture here: http://www.scp-wiki.net/files-q441-7b-a818-86
It might be a bit too elaborate, though. I was thinking more along the lines of a clean, classic gasmask.
As for the item itself… hmm… how about the hidden-face people are visible to everyone, but can only their target can physically interact with them. Anyone else (or remote drone) that touches them makes them disappear and reappear somewhere else they can stare at their target.
Maybe some sort of audio hallucination? The target thinks they can hear a muffled voice from behind the mask that no-one else can hear, and start wanting to remove the mask to hear what the thing is saying?
I'm not sure what sort of an "end-game" this thing would have, or if it even needs one. It could just be that it/they target one person for no apparent reason for a while, then suddenly target someone else. And would the staring be enough to cause paranoia? It wouldn't even need to be something supernatural; just knowing FOR CERTAIN that there IS something ineffably creepy staring at you, wherever you are.
I'm just thinking out loud hear, so feel free to shoot down or elaborate on any of these.
Photosynthetic:
I like the idea of the muffled voice, and of having one target, but I think the target is the only one who can't hear it. I prefer the mental image of the thing staring at you silently, for some reason.
…Oh hello inspiration. Warning: word-vomit ahead.
So the SCP is these things. They're humanoid entities that select a target and stare at him. Constantly. This, understandably, causes paranoia in the target, but he's more the lucky one. They're normally very good at hiding; despite their target never seeing them locomote, they never seem to be found anywhere that someone else can see them.
This effect isn't perfect, though. (The targets ought to wish it was.) If someone else does manage to glimpse this creature, he or she will hear it mumbling. The target cannot hear this voice, but most witnesses will find it very compelling, and 70-odd percent of them will become convinced that they need to take off the mask and hear it clearly. (Reasons vary based on the witness's personality and motivations.) Once a person has witnessed the creature, it no longer hides from her, or from anyone else she chooses to show it to. She will quickly discover, however, that she can't touch it.
By this point, the target will probably have realized that he can. Should this fact become known to the witness, she will often try to force the target to take off the mask. This is where it gets ugly, because both the target's desire to never see that face and the witness's desire to hear that voice now are equally strong. It usually ends in blows… or much worse.
Why would the creature do this? The way I see it, it doesn't want its mask removed, but it has no control over its supernaturally-compelling voice. All it can do is choose one person to make deaf to it, and make them want very very much never to see its face… Its target is its chosen defender.
…Comments?
Drewbear:
…They're sirens. But not "natural" sirens like the ones in the Greek myths; these were created and they HATE it.
Part of what they are forced to do it lure more people in to become new sirens. That's why they have to stay close to the target; by whatever process, s/he has been selected to become the next "meal" &/or siren. And if these mask-men didn't loathe their existence so much, their compelling song would rapidly entice the target into removing the mask, becoming another instance. But instead, they use what little leeway they have over their powers to deafen the target to their call. But to do so, they have to focus intently and entirely on the target (hence the staring). Over the years, they've learned that they can't fully muffle the "leakage" of their calls once someone's attention has been brought to them, so instead they try to hide.
…I do like how we're riffing off each other. :)