I think he may be a human form of Yog Soggoth, here are my reasons:
1:In the trailer for The Devil's Playhouse, one of his lines is "Welcome, to my playhouse of the bizzare. If that was intentional, then that would mean that The Devil's Toybox, the tool for summoning Yog-Soggoth, is his too.
2:Like Hugh Bliss, he looks (and sounds) like something desperately trying to appear human.
3:This one is debateable;He knows a lot about the toys of power doesn't he? I know a narrator is MENT to know a lot about the story.