The most prominent character is the anti - hero, the murderer. His entire existence revolves around his sense of smell. Then there are the various victims, each with their own unique scents. Additionally, there are other minor characters like those in the society where he lives, who react to his actions and the final product of his perfumery in different ways.
There is the murderer, who is the central figure. His abnormal sense of smell makes him unique. And there are also the victims, young women whose scents he desires. Their presence in the story is crucial as they are the source of the scents for his perfume - making obsession.