An orogene whose life is explored through three distinct stages. As Damaya, she is a frightened young girl taken to the Fulcrum for training. As Syenite, she is an ambitious orogene struggling under the Fulcrum's strict rules. As Essun, she is a cautious schoolteacher living a quiet life in Tirimo until a sudden tragedy forces her out of hiding.

A highly powerful ten-ring orogene at the Fulcrum. Bitter, cynical, and openly critical of the oppressive system he serves, he is burdened by the traumatic history of his past assignments. He acts as a mentor figure whose immense abilities mask deep emotional scars and a desire for a real family.

An unusually pale, strange child with pure white hair and "icewhite" eyes who begins following Essun. Though he appears young, his demeanor and abilities suggest a deeper, more ancient nature. He acts as a guide and companion on the dangerous roads of the Stillness.

A tall, pale-eyed Guardian tasked with overseeing and controlling orogenes. He takes Damaya from her family to train at the Fulcrum. He employs a chilling mix of gentle affection and brutal physical discipline to ensure absolute obedience from his charges.

A highly educated geomest and scavenger who lives on the margins of society. Born into the wealthy Leadership caste, she was quietly disowned due to her deep scientific curiosity and her gender identity. She now studies ancient artifacts and the mechanisms of the Stillness.

A bold, charismatic orogene and community leader in the independent island comm of Meov. Built like a physical laborer rather than a typical orogene, he captains raiding ships and openly embraces life. He offers a sharp contrast to the oppressed existence of Fulcrum orogenes.

The young son of Syenite and Alabaster, raised in the relatively safe haven of Meov. He inherits immense orogenic power from his parents and instinctively begins practicing his abilities at a very young age.

A respected stoneknapper and Essun’s husband in the quiet comm of Tirimo. Though initially appearing as a kind and easygoing family man, his deep-seated societal prejudices lead to a sudden, world-shattering act of violence against his own family when he discovers their secret.

The young children of Essun and Jija. Both inherit their mother's hidden orogenic abilities. Their discovery by their father shatters the family, leaving Uche murdered and Nassun abducted, which drives Essun's entire journey.

A gentle, soft-spoken young doctor from Tirimo. He possesses a rare lack of prejudice against orogenes and steps in to care for Essun during the darkest moment of her life before being forced to flee his home.

The confident and pragmatic leader of the underground comm of Castrima. As an orogene who openly embraces her identity by using a slur as her use-name, she utilizes her unique abilities to run the ancient mechanisms of her hidden city and protect her people.

The capable and prudent headman of Tirimo. Because of a personal family tragedy involving an orogene, he harbors a secret sympathy for Essun and attempts to help her handle the comm's strict lockdown protocols.

A young student, or "grit," at the Fulcrum whose precarious lack of control over her orogeny makes her a social outcast. Her desperation to survive the institution's harsh rules leads her to make selfish and dangerous choices.

A handsome and talkative older grit at the Fulcrum. His involvement in a plot to disgrace a fellow student backfires dramatically, resulting in a severe punishment that permanently breaks his spirit.

A thin, pale grit at the Fulcrum who is deeply homesick and vulnerable. His desperate desire to communicate with his family leads him into a compromising situation that others exploit.

An elderly, highly disciplined orogene and instructor at the Fulcrum. She embodies the institution's strict expectations of politeness and emotional control, supervising younger orogenes with rigid propriety.

A deputy governor in the coastal comm of Allia. Her open disdain and prejudice toward orogenes creates immediate friction when Fulcrum representatives arrive to assist her community.

The lieutenant governor of Allia. Plainspoken and courteous, she attempts to smooth over diplomatic insults and focuses pragmatically on the survival and well-being of her comm.

A deadly Guardian tasked with tracking down rogue orogenes. He operates with lethal efficiency and possesses the terrifying ability to neutralize orogenic power through physical contact.

A Guardian stationed at the Fulcrum. Her encounter with a hidden, ancient artifact triggers erratic and threatening behavior, which reveals physical vulnerabilities in the Guardians' control systems.

An enigmatic stone eater capable of assuming a pale, human-like female form. She moves silently through the earth and selectively intervenes to protect specific individuals for her own obscure reasons.