Perks provide additional character customization, providing significant bonuses and abilities that can drastically change how your character plays.
Each character can have a maximum of three perks, the first slot unlocking at Inquisitorial Rank 20.
The Perks themselves must be unlocked by meeting specific conditions, but once a Perk is unlocked, it becomes available to all of your characters. Some Perks are class-specific and thus can only be taken by characters of the appropriate class.