About 10 minutes in, we see a teen boy wearing a facemask, a facebow and a high-pull headgear. This is not an "incidental" view, this is right in the middle of the screen for 15 to 30 seconds. Yeah, the guy has a bad lisp too.... he is portraying the archetypal geek!

We also see a picture of the same teen later on in a news report (as he is dead).

Ignoring the braces for a moment, Dimension 404 is fun to watch: it is a sort of modern day "Twighlight Zone", low budget but great graphics, and quite amusing too. Each episode is a self-contained story.