Four-Eyed Jack is the ghost of a mad scientist who haunts the Sunset Arms on stormy nights. Jack used to be a resident of the boarding house many years ago, who would experiment on beans in the basement, until he died in an accident, caused by one of his experiments. He appears as at the end of "Four-Eyed Jack", where he retrieved his eyeglasses and woke Gerald, whom he scared before ultimately vanishing. Despite making Gerald scream, however, Jack does not seem to make a big deal about frightening people: when he retrieved his glasses, he merely uttered a very apathetic, "Uh, boo."
- 23b. Four-Eyed Jack