Japanese RPGs you mean (Minus Ultima). Otherwise you would need the Dragonborn, Nerevanire, Sheogorath (Cus lulz), the Vault Dweller. Characters from the Warcraft series could be counted, the hero from Fable, or a lot of others that I can't exactly nail down, as a lot of western RPGs are very different from Eastern counterparts (Mass Effect for example). Oh, yeah Gerald! Or the guy from Dark Souls.What about a massive crossover between characters from various RPGs?
Terra (VI)Dragon Quest
Kain Highwind (IV)
Alena (IV)Mario RPGs
SoraTales of Symphonia
ReynArc Rise Fantasia (This game has been on my mind since I got it recently, so why not?)
Hiyoko Tosaka (Hatoful Boyfriend, probably running a fan design, and with a bird head mask)