What is "LC"? Is that "Lost Child", meaning one of the first 7 villagers when you start a new tribe?

If so, then the answer is no. My tribe was about 1/2 through the puzzles with about 35 villagers when I noticed this guy didn't have any parents showing. He was 14 or 16 when I noticed him? Then one night, I woke up to find his nighttime activities.

Maybe he's an alien?