* The priest: John's mentor, who teaches him about the history of the world and the importance of preserving knowledge.
* Mary: John's love interest, a young woman who lives in the city of Babylon.
* The Leader: The leader of the city of Babylon, a powerful and ruthless man who is determined to maintain control over the city.
* Marcion: A former slave who has become a powerful rebel leader.
* The Oracle: A mysterious figure who lives in the desert, and who is said to have the power to see the future.
* The Beast: A giant, mutated creature that lives in the desert, and which is said to be the manifestation of the world's evil.