Xemnas:He's a jerk so far.He yells at the tops of his lungs and slaps Xion a lot.
Roxas:Roxas still has his temper. Roxas acts really sweet towards Xion though.
Zexion:Zexion is really paranoid and first to notice Roxas's crush on Xion. I feel bad for Roxas because he has to share a room with him and sometimes Zexion has nightmares and often traps Roxas in his lexicon.