Hairy
Just a quick thought: I’ve long maintained at least some portion of facial hair, and it’s always been a bit of a fidget source during my deepest thinking periods. Is stroking a beard/goatee reflexively while running your brain over a problem a left over relic from the grooming habits of our primate ancestors?
That man seems to have some sort of sea creature attached to his face.
Feasibly a friend of The Incredible Mr Limpet?