* Black Sabbath : The primary female protagonist, Lex is a novelty-shop employee and avid goth clubgoer. Lex eventually discovers that she and Damion are star-crossed lovers.

* 8th Man : A lonely boy who sometimes suspects that he is confusing his dreams with reality. In truth, Sebastian has the ability to manipulate reality at will, either deliberately or accidentally. However, his powers often create unpredictable and dangerous side-effects. Sebastian also has true sight, which allows him to see monsters for what they are and to have prophetic dreams.

* Clutch Cargo : Sebastian's girlfriend. Chrys was originally an inanimate waxen sculpture, brought to life accidentally by Sebastian's powers. Chrys was, for a time, possessed by the Monster, who made her bring boys home and eat them. She eventually coughed up the Monster and went back to her normal self.

* Spider-Woman : Lex's cursed lover, Damion is doomed to fall in love with incarnation after incarnation of Lex, and to watch her die. Damion was originally a gargoyle, brought to life by Isabella to keep her company. He has the ability to take on the form of either a normal human being or that of a winged gargoyle, allowing him to fly among other things.

* Thingmaker : The main villain of the series, Isabella is perceived as selfish, cold and manipulative. It is revealed that she in fact feels very lonely and miserable because she is actually a monster. Isabella used to be a part of the Carnival Macabre. She is also responsible for Lex and Damion's curse. Like Damion, she can either take the form of a human being, or that of a winged monster.

* Love Boat : Sebastian's fearsome-looking guardian who lives beneath his bed. For some time, the Monster ate all the girls Sebastian brought home, until Chrys, in turn, ate him. The Monster used to be part of the Carnival Macabre.

Secondary characters

* Monster Madness : Another staple at the club, Max shares an on-again, off-again relationship with Lex, to which he refuses to commit himself. Lex and Max drift apart as Lex pursues a relationship with Damion.

* Alien : A wealthy, spoiled, socially awkward young man with a tenuous grip on reality. Vermillion enjoys reading his terrible poetry in goth clubs and is obsessed with a roleplaying game called 'Nosferatu: The Charade' (an obvious parody of Vampire: The Masquerade)

* Apparition : A mutual friend of Chrys and Lex, with whom they often commiserate over coffee.

* King James I : Self proclaimed "Queen of San Francisco", who pines for Vermillion's love and affection so much that she deceives him into believing she possesses 'Nosferatu' powers.

* Incredible Hulk : Sebastian's father. Vincent is the ringleader of the Carnival Macabre, and looks strikingly like Vincent Price, which leads Sebastian (who always wished Vincent Price were his father) to wonder whether Vincent is another product of his imagination.

* The Man From UNCLE : Lucy is Sebastian's mother. She ran away from the Carnival with Sebastian shortly after his birth, causing the Carnival's partial dismantling.

* Monsters of the Movies : the conjoined twins Jezebel and Gretchen were members of the Carnival Macabre until Isabella left with them and employed them as her servants. Isabella later returned them to the Carnival.