Jeff is a friendly entity appearing in the Hotel, he is a creature from the darkness. Despite this he is friendly, but according to El Goblino, he can do kill peoples if sufficiently angered. You can shine a flashlight at him, and it does not illuminates the darkness at all, strangely, you can also turn off his radio, which causes him to give you a annoyed look before he turns it back on. He will give you a gleeful look whenever you buy anything or gives him tips.