Professor Layton, Luke and Emmy first met Joseph when looking for a place overlooking North Ely street in order to see the specter. He gave the three rooms once they had solved his puzzle.
Bobbi, who was evacuating, told them that Joseph had refused to leave the hotel, specter or no specter, and then promptly leaves, giving the trio her puppet theater.
After the specter attack, Joseph can be found at the hotel for the rest of Last Specter.
Joseph gives Professor Layton and co. two puzzles during their excursion through Misthallery. These puzzles are "Bottle Game" and "How Many Rooms?."
Doubling as bartender and hotelier, Joseph is a jovial and respectable old man who enjoys fine food and a good banter. He is as stubborn as a mule, refusing to leave the hotel even under the treat of the specter's attack.