Henry Stauf is a character in
the 7th Guest. He is the owner of the mansion that plays host to all manner of games and puzzles. He also has that weird
gothic vibe that leads me to think that he was entirely
underdeveloped as a character.
Stauf was a toymaker, and seemingly a very good one. The house stands as his greatest achievement.
Soon after its creation, Stauf invited 6 Guests to marvel at his brilliance. However, through some strange
quirk of fate they became locked inside. That night, the
children that had loved his toys began dying and now the place is reputed to be haunted by "eerie lights and the terrible sing-song rhymes of the children"
Stauf just seems to be the
quintessential unknown evil - a toymaker gone insane.
Of course, all of that is why I chose this particular name (well, that, and I've only ever found that it'd been taken by someone else
once).