Each character's standard progression in the Sphere Grid is reminiscent of at least one Job Class from previous Final Fantasy games. Tidus is a Fighter-Time Mage combination, Yuna is a typical White Mage/Summoner, Lulu is a pure Black Mage, Wakka is an odd take on an Archer-Green Mage*
given his status-inducing attacks
fusion, Auron is a FFT-style Knight, Kimahri is a cross between a Dragoon, a Blue Mage and a Red Mage, and Rikku is a wonderful blend between a Thief and a Chemist.
Tidus and Yuna's Japanese voice actors, Masakazu Morita and Mayuko Aoki, previously did the motion capture for Zell and Rinoa in Final Fantasy VIII. Mayuko Aoki also mocapped Edea and Garnet, and voiced Selphie for Kingdom Hearts.