Agni, born Arshad Satyendra Iyer into a privileged Brahmin family, abandoned his heritage after witnessing his father’s material excesses, spiraling into hedonism until crimes condemned him to execution. Prince Soma Asman Kadar halted his death, shearing his hair and bestowing the name “Agni” as a rebirth ritual. Swearing eternal fealty, Agni venerates Soma as divinity incarnate, anchoring his life to servitude. Standing tall with slate-gray eyes and cropped white hair adorned by twin bead-strung locks, Agni wears emerald sherwanis with golden sashes, turbans, silver earrings, and a bindi. His bandaged right forearm conceals Kali’s blessing—the “Right Hand of God”—unleashing divine force when unveiled. Humble and compassionate, Agni uplifts others by delegating tasks to highlight their strengths, deflecting praise for himself. His devotion to Soma compels morally ambiguous acts, including temporary alliances with enemies and withholding truths like maid Mina’s betrayal, all to protect Soma’s innocence and nurture his leadership. A marma adi martial arts master, Agni once fought demon butler Sebastian Michaelis to a stalemate. His culinary prowess, showcased in a curry duel judged by Queen Victoria using strategic ingredients like blue lobster, reflects cultural pride. Beyond combat and cooking, he exhibits emotional vulnerability, weeping openly at losses and joyous reconciliations. In the OVA *His Butler, Performer*, Agni plays Polonius in a *Hamlet* adaptation, accidentally killing Ophelia by reflexively punching her during an improvised stage kiss—a stark display of his protective instincts. His theatrical participation underscores adaptability and communal engagement. Agni’s rivalry with Sebastian mingles grudging respect with collaboration in household crises, contrasting Agni’s genuine loyalty against Sebastian’s contractual duty. Through Agni, Indian customs like Kali veneration and curry cuisine permeate the Phantomhive estate. His arc traces redemption: from moral bankruptcy to purposeful service. Posthumously, his legacy endures in philanthropic work with Soma, feeding London’s poor, and in fostering resilience among allies, cementing his role as a catalyst for growth through selfless devotion.