In 'amontillado short story', there are two central characters. The first is the narrator, whose name we don't know. He is the one with the vendetta and the mastermind behind the whole plot. The second main character is Fortunato. He is a character who is perhaps a bit too trusting or perhaps just blinded by his own pride in his wine - tasting abilities. His love for amontillado ultimately becomes the tool that the narrator uses to bring about his downfall. These two characters drive the entire story forward, with their interactions being at the heart of the narrative.
The main characters are the narrator and Fortunato. The narrator is the one who devises the elaborate plan to take revenge on Fortunato. Fortunato, on the other hand, is the victim of this revenge. He is a man who is proud of his knowledge of wine, especially amontillado, and his pride is what the narrator uses against him.