Persephone is the second of four daughters of Demeter. She cultivates a public image as a carefree, polished socialite to survive the power politics of Olympus's upper city. Behind this facade she is cynical and fiercely protective of her sisters. Facing an unwanted betrothal to Zeus, she seeks sanctuary across the River Styx.

Hades is the ruler of the lower city of Olympus, widely believed by upper-city residents to be a dead myth. He operates independently of the Thirteen rulers and maintains a formidable, fearsome reputation to protect his territory and citizens. Beneath his intimidating public persona he is deeply community-minded and carries physical scars from a childhood tragedy.

Demeter is Persephone's mother and one of the Thirteen rulers of Olympus, responsible for the city-state's food supply and logistics. She is ruthlessly ambitious, viewing her daughters' public roles as extensions of her own political influence. Her preference for earth tones masks a calculating nature willing to make severe trade-offs for power.

Zeus is the leader of the Thirteen rulers of Olympus and holds a legacy title. He is an older autocrat who treats women as disposable property, with his past wives often meeting mysterious ends. He uses fear, surveillance, and absolute authority to maintain control over the upper city.

Hermes serves as the official messenger of the Thirteen. She is a skilled trickster with a talent for bypassing any security system, allowing her to easily infiltrate Hades's home. Despite her official duties serving the upper city rulers, she maintains a friendly relationship with Hades and offers him sharp political insights.

Dionysus is a member of the Thirteen and functions as Olympus's leisure specialist. He often accompanies Hermes on her visits to the lower city to take advantage of Hades's hospitality and high-quality wine. Like Hermes, he uses a carefree attitude to obscure a keen understanding of Olympian politics.

Psyche is Persephone's older sister. She adopts a quiet, unobtrusive public image to survive the dangers of the upper city, contrasting with Persephone's visible persona. She is highly observant, cynical about Olympian politics, and deeply supportive of her sister's bid for freedom.

Eurydice is the youngest of Demeter's four daughters. She is idealistic and drawn to the excitement of life, remaining somewhat insulated from the harshest realities of upper-city politics. Her pursuit of a relationship with a local musician eventually draws her into dangerous conflicts.

Callisto is one of the four daughters of Demeter. Unlike Persephone's cheerful mask or Psyche's quiet observation, Callisto possesses a temperamental and openly rebellious personality. She handles the dangerous environment of the upper city through direct defiance.

Eros is the son of Aphrodite and operates as her enforcer and willing spy. He tracks shifting political alliances and reports back to his mother, making him a dangerous presence at social gatherings.

Aphrodite is an elite figure in Olympus who relies on her son to act as an enforcer and spy to maintain her political standing.

Andreas is Hades's elderly advisor in the lower city. He is highly protective of the fragile peace between the upper and lower cities and worries constantly that Hades's actions will bring Zeus's wrath upon their citizens.

Charon serves as a key security coordinator. While he officially has ties to Zeus in the upper city, he also functions as Hades's chief lieutenant and personal ferryman, managing the boundaries and safety of the lower city.

Juliette is a fashion atelier owner operating in the lower city. She relocated from the upper city after openly criticizing Zeus following the death of one of his previous wives, finding a safer haven under Hades's jurisdiction.

Georgie is Hades's cook and housekeeper. She is highly protective of her domain in the kitchen, typically refusing to let Hades help, but she readily accepts Persephone's presence and assistance.

Orpheus is a mortal musician residing in Olympus. He attracts Eurydice's affections but proves highly unreliable, prioritizing his own interests over her safety when political tensions rise.

Gayle is a pet store owner in the lower city who is familiar and friendly with Hades. She provides him with a litter of puppies that Persephone urges him to adopt.