is there any other characters you can control besides roxas

[Axel of Orginazation xiii]

I already know axel is one for multiplayer

[UltimaxWeapon]

at first nomura said that u can be any organization character,
but at jump festa he narrowed it down to
Roxas, Axel, Saix, and Xigbar.
those are the only playable characters that we know of.