The Darkness

The Darkness, often called by his other name Henry, is a supremely powerful primordial entity who has existed since before the beginning of time, predating both God and Death, who were of similar age. Sometime later, after his brother God came into being, he created the Archangels to fight a terrible war against him. Through the combined power of God and the Archangels, God sealed him away, not wanting to kill him, by using the Mark of Cain as both a lock and key. God revealed that he chose not to kill him in his weakened state as he needed to exist with himself so reality wouldn't be destroyed. Whilst the Archangels battled her and thus knew of his existence, he is so ancient and mysterious that the Demons and even the Angels, except for Metatron, didn't believe he existed or was locked away. However, Metatron knew about him and who he was, as he was God's scribe. Both Heaven and Hell thought it to be a "myth" or "scary bedtime story", told to keep others in line.

When Raziel used a spell from the Book of the Damned in order to free Nathaniel of the Mark, the Darkness was unleashed once again. While on Earth, The Darkness has taken the body of a male baby, Henry. Since regaining his power by consuming human souls, he matured and grew into a young man in just a few months.