Phileas Fogg is the deuteragonist of 80 Days. He is the master of Passepartout and makes the wager that sets the events of the game in motion.
Fogg is a member of the Reform Club and studied the liberal arts at Trinity College, Cambridge. He mentions at one point in the game that his ancestors made whiskey, and that his grandfather was a polar explorer. Throughout their travels, Fogg usually displays little interest in local culture and prefers to read the paper or consult his ledger, save for a few instances such as visiting the Parthenon in Athens or the polar expedition.
He is self-centered, cold, and a gambling man, which sometimes lead him into making impossible and outrageous wager which leads himself and Passepartout into trouble (much to Passepartout's dismay). such as arranging boxing match between Passepartout and Charlie Sullivan, offer to solve the mystery at Noelani, and of course, this goddamned wager that leads them going around the world.
The level of Fogg's relationship with Passepartout affects how many hearts are restored with the "Fogg" interaction during travel, as well as influencing dialogue throughout the game. He is concerned with preserving propriety and integrity, and his relationship with Passepartout will tend to improve if his valet acts accordingly. Conversely, if Passepartout flouts convention or behaves dishonorably, Fogg's relationship with him will worsen.
Even if Fogg's hearts reaches zero, he will not die (though Passepartout's valeting status will drop). However, if certain journeys would subtract more hearts than Fogg has remaining, he will be unable to undertake them.
Fogg will occasionally comment on Passepartout's character and recent purchases. By the end of the game, it is possible for Fogg to have won or lost his wager, return to London alone, or even die on his travels.