English version voiced by Dave Pettit, who also did voice work for several Mega Man games as well as a few Gundam ones.
Japanese version voiced by Chafurin, who has done a lot of voice work for anime shows.
Gregory is the keeper of the hotel, making him a perfect narrator for the game. He loves to entice guests in and keep them there. His intentions aren't fully known in the game, adding to the mystery.
Gregory has a secret that is known by the other staff members of the hotel - he enjoys a dirty magazine, which needs to be found as part of a puzzle mission,