Hidan (飛段) was the partner of Kakuzu, despite having mutual dislike for each other, and was the second newest member of Akatsuki, at the time of his introduction. Kisame laughingly referred to Hidan and Kakuzu as the "Zombie Brothers".
Hidan hailed from Yugakure. After it deteriorated from a shinobi village to a tourist site, Hidan became infuriated with how things were turning out. He believed that the shinobi that resided there were meant to kill, and thus slaughtered his neighbors before leaving Yugakure, and joining the cult-like faith known as Jashin, a religion that worshiped a deity of the same name. The primary teaching of this faith appears to be outright slaughter, where anything less than utter destruction is considered a sin.The amulet around his neck was a symbol of Jashin, and he used it to pray to his god before battling, requesting a good kill, or (when he was not allowed to) for forgiveness. Eventually, he joined Akatsuki after seeing Kakuzu, a man who he saw as a pioneer in immortality, and he was later partnered with him.
Hidan has medium length silver hair slicked back with distinctive pinkish-purple eyes. He wears his Akatsuki cloak open with no shirt, only pants under it revealing his Yugakure forehead protector around his neck and Jashin amulet. He wears dark green nail polish and his Akatsuki ring on his left index finger, which bears the kanji for Three (三, san). He is always seen with his Triple-Bladed Scythe on his back. His left ear also appears to be torn or cut after his fight with Asuma. Also, after his battle against Asuma's unit, he did not replace his torn Akatsuki robes.