Anubis

Anubis is an ancient, extra-dimensional demon who entered the LEGO universe around the time of the rise of the ancient Egyptian Empire. In our universe, he takes on the form of a tall, black, bipedal jackal adorned in golden raiments. He made himself known to the Egyptians, who worshipped him as a god. He controlled evil powers, giving him the title of "God of the Underworld".

Farther into the future, he became a source of worship for the King of the Brickston Empire, Olaf One-Eye. Anubis corrupted him, turned him evil, and made him into a vile tyrant who mistreated his subjects. Eventually, after Olaf was killed by Gerrard, Anubis empowered the court mage, Garmaddon, to resurrect the dead king. This culminated in the Castle Wars, which involved Dead-King Olaf and his minions (The Horde) versus King Gerrard and his loyal knights (The Empire). Anubis is credited with the founding of the Horde.