Biggs and Wedge
Ah, Biggs and Wedge. Always seen together, in every game, in a variety of bit-part guises. Sometimes they're the comic relief bad guys, sometimes they're revolutionaries, and sometimes they're the doormen who are inexplicably better at blitzball than trained professionals. What is their secret agenda? How do they follow the player through all these parallel universes or alternate timelines, or whatever it is that means the FF games can be totally different in every way apart from chocobos and gil?
We mere gamers may not be able to perceive their shadowy endgame, but dammit we deserve to play it. Navigating your way through Final Fantasy worlds, fighting the best of the best of monsters and malcontents, and goofing off at the Galbadia Hotel. A quest to save not just one world, but all the worlds you ever played through. Tell me that doesn't set your nerd senses aflame.