Haagentimon is a Demon Lord Digimon whose name and design are derived from a the mythological Haagenti. Although it was originally a high-ranking Angel Digimon that ruled over death, it despaired against the unreasonable justice of the world and rebelled against God. It then received the scourge of God and eternally lost one of its eyes and half of its body, and has since replaced that half with an artificial body cut from a solid stone. Its long, artificial left arm can catch hold of ghostly forms, and the large emerald that it replaced its lost eye with allows it to observe anywhere within the Digital World. Due to these, Haagentimon is known across the Digital World as the "Scourge of Death". Due to their similar appearance, Haagentimon is often regarded as a relative to Bagramon. Unlike Bagramon, it has six horns on its head, and four black wings.
Haagentimon is a brown-haired, bearded man with fair skin, six red horns on its head, and four black wings. On the left side of his body, he has a long, skeletal arm, a clawed leg, and a skeletal half-mask with a emerald in the place of his eye, each of which is carved from the stone. He wears black clothes with a golden chest-plate, a silver shoulder pads, and a black mantle.
- Thriller Snatcher: Rips a living Digimon's soul from its body with its left arm, and sends it to heaven or hell as it pleases, or even places it within another Digimon's body.
- Invisible Cat-eyes: Observes any location within the Digital world using its emerald-eye, allowing it to instantaneously obtain any information it wants to know.
- Eternal Claw