Claude Faustus

The spider demon contracted by Alois, who serves as the butler of the Trancy household. He is the mastermind of the second season. A beautiful young man with black hair, golden eyes, and glasses. He absolutely obeys his contractor, Alois, with "Yes, Your Highness," and perfectly performs his duties. Following Alois's "wish," he took advantage of the moment Sebastian lost his left arm, which bore the contract mark, in a fight with Ash, and took away Ciel's soul, which was about to be offered in fulfillment of his wish.

Always calm and emotionless, but he has a bit of an eccentric side, such as starting to tap dance as a warm-up before work. While maintaining a calm demeanor with Sebastian, they have a quite hostile relationship, sarcastically pointing out each other's work flaws and fiercely competing in their status as butlers. He is also in charge of commanding the demons serving the Trancy household and fights using the demonic sword Levantine stored inside Hannah's body during combat.