Black Butler — Characters & Cast

To faithfully execute Ciel’s commands until the contract finishes, ultimately feasting on his soul.

Shifts from an aloof monster adjusting to the petty details of human domestic service to an impeccably polished, terrifying predator whose obsession with Ciel’s soul grows ever more refined.

To hunt down and punish all conspirators responsible for the massacre of his family.

Hardens from a terrified captive into an icy, calculating underworld watchdog who repeatedly chooses ruthlessness over mercy, sacrificing pieces of his humanity with every resolved investigation.

To protect Ciel's happiness and keep him safe from harm.

Evolves from an ostensibly childish, frivolous fiancée obsessed with cute things to a fierce, master-swordsman prodigy willing to brandish lethal blades to protect Ciel at any cost (Book of the Atlantic).

To bask in passion, blood, and pursue Sebastian’s affections.

Begins as Madame Red’s timid, bumbling butler before revealing a flamboyant, blood-crazed Shinigami persona wielding a chainsaw Death Scythe; evolves into a comedic yet lethal recurring foil for Sebastian.

To defy the boundary between life and death and preserve the Phantomhive lineage.

Initially appears as a bizarre, giggling mortician trading underworld intel for top-tier laughter; revealed in Book of the Atlantic to be a legendary rogue Grim Reaper experimenting with the reanimation of human corpses (Bizarre Dolls).