Quote - It might be that his skin material has either Ambient or Translucency set to something other than 0. These will give the impression of self-lit objects, and while it works okay in sunlight to give a more glowing appearance to skin, it really doesn't work at all in dimly lit scenes.

I got a few minutes to play with this just now, and John, you nailed it! I knew about the Ambient setting and had checked that (it was fine) but I overlooked the Translucency setting in your post. Re-reading the thread just now I thought to go back and look and sure enough - the developer had set all of the skin translucencies to .4 - this is the Freak but I was using the "Hairy Freak" texture from Jepe to get sort of a Jason & The Argonauts - looking hero. I had never tried it out in a low-lit scene like this one and he practically glows in the dark! I set them all to zero and the problem vanished.

Thanks to all of you, and now I have more info for my scrapbook, which is growing apace. :D