What about Tactics? Mystic Quest? Aren't they good enough? LOL, w/e

II - Richard
IV - Rydia
V - Reina
VI - Relm
VII - Red XIII
VIII - Rinoa
IX - Ruby
X - Rin
T - Ramza
KH - Riku

The R Team!

Sure Rikku works for X, but then theres Riku for KH... Riku and Rikku? Hmm No, noy good. Also had to dig for an R name for FFIX. Ruby was a member of Zidane's troupe. And she has a little sidequest thingy. You never said they all had to be playable! Oh, in case you forgot who Rin is, he owns the chain of stores located in various places throughout Spira, and in X-2 he created that bizzare coin game.