Title: Varia Officer

Gender: Male

Age: 16 (currently), 26 (10 years later)

Weapons: knives and wires

Box animal: Storm Mink (Visone Tempesta)

Flame: Storm

Birthdate: December 22

Zodiac: Capricorn

Blood type: AB

Height: 170 cm

Weight: 58kg

Manga debut: Chapter 92

Anime debut: Episode 40

Resident genius prince of the Varia and its youngest member. Belphegor is the holder of the Ring of Storm and fought Gokudera for it. His nickname is "Prince the Ripper."

When he was eight years old, he murdered his twin brother as well as his whole family, and becomes euphoric when he sees his own blood, reminding him of the time he stabbed his brother. After that, he joined the Varia Assassination Squad by himself

He is supposed to represent the sin of Sloth since in Christian tradition, Belphegor is said to be the chief demon of this deadly sin.