Satan, also known as the Devil, the Desolate One or the Fallen Angel, is regarded by Christianity and various religious groups as the supreme overlord of the hierarchy of Hell. According to the Christian Bible, he was originally an angel called Lucifer, but was exiled from Heaven after a failed rebellion against God.
It is indicated by Damien Thorn in The Final Conflict that the accidents and other events that cause the deaths of those who discover Damien's identity as the Antichrist (and therefore threaten his life, the secrecy of his identity, and/or his rise to power) are influenced by Satan, Damien's father.
Some fans believe that the Raven is the form which Satan takes on earth.Christ is approaching, he expresses rage and blame towards Christ for Satan's exile from Heaven. He also vows to Satan that he will avenge his exile from Heaven by destroying Christ, but Damien ultimately fails and dies.
- In the Omen books, and once in the film Damien - Omen II, the Antichrist was referred to as being a projection or incarnation of Satan.
- In some of Katherine's nightmares of Damien in The Omen (2006), a figure in a red cloak with a jackal's skull for a head is seen with Damien. Some fans believe that this was Satan himself.