Roles are a very important part of Star Ocean: Integrity and Faithlessness, as they can be used to dictate how your AI party members act during battle. You’ll unlock Roles very early in the game, but will only have a few of them accessible from the start. Every character is able to equip up to four Roles on them, although you can only equip a Role to a single character. If you choose to equip the same Role on a different person, then it will be removed from the previous character.

There are five different categories for Roles, which are Attack, Defense, Healing, Support and Miscellaneous. Also, each Role is able to be leveled by either using it during battle or by expending Skill Points. Similar to skills, every Role has a Mastery percentage shown that will increase as you use it in battle, lessening the amount of SP needed for it to reach the next level. New Roles are learned through a variety of ways, such as leveling other Roles, as rewards from Quests and achieveing certain Battle Trophies, and even for viewing specific Private Actions.