Marlow is a 26-year-old novelist who writes a popular mythology series under the pen name Merit Finnegan. She previously worked as a sex worker in South America and copes with her traumatic, strictly religious upbringing by heavily using drugs and alcohol. She chafes against the limits of ordinary human logic, trying to live a normal life while remaining deeply attached to an invisible entity she calls Caliban.

Fauna is a Norse skogsrå, possessing ethereal beauty that resembles a baby deer transformed into a human. She is a sexually uninhibited free spirit who dresses in a hippie style and values her independence above committing to a single partner. Possessing deep knowledge of the otherworldly dimensions, she acts as a guide to the supernatural world.

Caliban is an ethereally beautiful being with silver features who acts as Marlow's constant companion. Initially appearing as a white fox during her childhood, he is later identified as the Prince of Hell. He operates under strict rules, doing only what Marlow explicitly permits, and restricts his immense power to ensure her comfort.

Azrames is a demon rendered entirely in monochromatic shades of gray, black, and white with obsidian horns. He possesses a strong sense of justice, working alongside a mortal witch to punish abusers. He covers himself in tattoos, each representing a person he has freed from domestic violence.

Silas is a metallic-eyed angel aligned with Heaven who wields a sword against parasitic entities. He initially comes across as morally neutral and detached, serving a demanding overlord while observing the shifting politics between the dimensions. His exact motives remain ambiguous as he intervenes in Marlow's life.

Lisbeth is Marlow’s devoutly religious and emotionally abusive mother. She views the world strictly through the lens of her Christian faith, believing her ability to see supernatural entities is a divine gift of discernment. Her manipulative parenting style involves alternating between intense praise and cruel silence.

Betty is a mortal witch who retains memories of her past lives and runs a local metaphysical shop. She dedicates her time to helping women escape abusive relationships by summoning demonic assistance to punish their abusers.

The King of Hell is a powerful entity with gigantic wings, appearing much kinder and gentler than human myths suggest. He acts as a ruler of his diverse domain and takes a keen interest in the shifting balance of power among the immortals.

Astarte is a Phoenician goddess of sex, love, and war who operates an upscale, private fertility clinic. Operating under the name Dr. Ayona, she wears a golden ouroboros necklace and seeks to regain worshipers by leveraging her divine influence over human reproduction.

Anath is a Phoenician war goddess who assists her sister at the fertility clinic. She acts as security and backup for the clinic's clandestine operations, commanding an army of parasitic entities.

Dagon is an ancient Phoenician god of agriculture who is partially composed of fish elements. He resents being trapped in modern America, a place that has largely discarded ancient beliefs and traditions.

Jessabelle is a receptionist at the fertility clinic who wears a serpent bracelet. She manages the clinic's exclusive clientele and administers drugged beverages to patients to ensure compliance with the doctors' hidden agendas.

Richard is a disgruntled former client from Marlow's past as a sex worker. He tracks her down with malicious intent, inadvertently serving as the catalyst for supernatural entities revealing themselves in her apartment.

Nia is one of Marlow's mortal friends who lives a stable married life. She frequently checks in on Marlow via text, worrying about her erratic behavior and sudden disappearances.

Kirby is a close friend of Marlow who remains unaware of the supernatural forces acting upon her life. She represents the normal, human existence Marlow struggles to maintain.

EG is Marlow's publishing editor. She manages the success of the popular Pantheon mythology book series and actively protects her author's professional reputation from public scandals.