* The Magician (Marco): A mysterious figure who orchestrates the entire Night Circus, a magical competition between two young magicians. He is enigmatic and his true motives are veiled throughout the novel.
* The Magician's Assistant (Celia Bowen): Marco's chosen assistant and the rival of the protagonist. She is fiercely loyal to Marco and her devotion to the Night Circus is unwavering.
* The Protagonist (unnamed): A young magician of immense talent, who is drawn into the competition with Celia and Marco. His identity is initially unknown, but he eventually reveals himself to be a powerful sorcerer.
* Hester (The Narrator): A mysterious woman who narrates the story and acts as an observer of the competition. Her role in the events of the Night Circus is shrouded in mystery.
While the protagonist, Celia, and Marco are the main players in the competition, Hester's narration provides a unique perspective on the events and the deeper meaning of the magical world they inhabit. The story also features a number of secondary characters, including members of the Night Circus staff, spectators, and other figures from the magical realm.
It's worth noting that the protagonist remains nameless throughout the book, further adding to the mystique and suspense of the narrative.