Prince Demogorgon was the demon lord and minor deity of domination and the draining of energy, an embodiment of madness and destruction that sought to drag all down into the infinite depths of the Abyss. Inspiring fear in even other demon lords, his self-proclaimed title of Prince of Demons was won by virtue of power and influence; many demons challenged it, but none could defeat Demogorgon and claim it.
Demogorgon attempted to invade Abmarah multiple times in the past millennia, primarily through the cyclic re-opening of the Abyssgate. He was defeated by the The Pirate Court both times, with his last defeat in 3E452 by the Phoenix Nebula sealing that abyssgate for good. One of Demogorgon's chipped teeth was the piece of wrath gained from his earlier defeat in 2E571.
Demogorgon towered a full 18 feet (5.5 meters) in height, his body at once sinuous like that of a snake and powerful like that of a great ape. Two baleful baboon heads, with blue and red faces similar to those of mandrills, leered from atop his lumbering shoulders, from which two long tentacles writhed. His lower torso was saurian, like some great reptile with blue-green, scaly skin. He had an immense forked tail.
Each of Demogorgon's heads had its own name and personality, a duality that created an enduring internal conflict of his personality, while shaping all his actions and even his realm. Perhaps the only thing preventing Demogorgon from taking over the rest of the Abyss was his own dual nature. Despite this internal madness, Demogorgon was extremely creative and relished experimentation and innovation.
Demogorgon's cult was relatively small compared to "true" deities, but much larger than those of most fiends. Demogorgon was sufficiently powerful to offer patronage pacts with warlocks, and many individuals sought his power for themselves. Mortals could not summon Demogorgon himself, but the most pious could use sacrifice to summon a temporary aspect of Demogorgon.