As the game progresses, players are able to recruit generic player characters and customize them using the Job system of the Final Fantasy series. Several battles also feature "Guest" characters that are controlled via the game's A.I., which may be recruited later in the game according to the story proper. Aside from original characters, characters from other Square games appear in cameo roles. The characters were designed by Akihiko Yoshida, who was also in charge of the illustration and character designs of games such as "Tactics Ogre", "Final Fantasy Tactics Advance", "Final Fantasy XII", and "Vagrant Story".