She grew up in a poor, dusty village where people with ordinary red blood serve the elite. She comes from a large family with a disabled sister and brothers who were forced into the war. She spent her early years as a sneaky thief to help her family survive. She is an Electricon who can generate and control lightning, an impossible feat for a Red. Mareena Titanos: The royal court hides her true bloodline by pretending she is a long-lost Silver noble and betrothing her to a prince. She becomes a symbol of hope and defiance for the Red rebellion. Survival makes her cautious, resilient, and slow to trust others. She works with the underground rebel group to fight against Silver oppression. She faces intense betrayals and dangerous romances with royal brothers Cal and Maven.

Depicted to be a lonely teenager, who was constantly overshadowed by his older brother and ignored by his father. Mare described Maven as kind and diplomatic, but with a passionate heart that he kept hidden from others. He is complex, tragic, and deeply manipulative. Maven is 5’10, with a lean and fine-boned frame. He has very pale skin, thick black hair and bright blue eyes embedded with tiny silver flecks. He has a serious, regal look and sharp features. After the death of his mother, Maven becomes thinner, and bruise-like shadows appear under his eyes. Maven is a Burner, meaning he can manipulate heat and fire, but not create it.

The crown prince, Tiberias the Seventh. He is a Silver with the power to control heat and flames. As the eldest son, Cal stands to inherit the throne, and he is also one of Mare's love interests. Yet he is hidden and doesn't always show what he is feeling. He is dutiful, compassionate, and traditional. Cal is muscular and tall, with the build of a born soldier. He has black hair and bronze eyes.

Leader in the Scarlet Guard, a rebel group fighting to overthrow the ruling Silver elite. She is a fierce, tactical Red warrior without any supernatural abilities. Farley is strong-willed, loyal, and brave. She has a rough and tough exterior, she feels pain, but she tries to hide it from others. Farley has an extreme hatred against all Silvers and treats them with utter scorn and fearlessness. Farley is tall, about six feet. She has long, blond hair that she chops short because of the summer heat in Norta. Farley also has a long scar on the bottom half of her face. Farley is known to carry a gun at her hip, which is tucked in a red sash belt stamped with the symbol of the Scarlet Guard, a rising sun. She also carries a knife concealed in her boot.

Caring, patient and intelligent. He is able to see through people's manipulations and lies because he himself could be very sly and manipulative. He also had a good sense of humor. He doesn't always get along with his older brothers because they picked on him for his smaller size. He was incredibly loyal and refuses to leave the side of the people he loves even when things got dangerous. Shade is very trustworthy and was a consistently nice person. He tries to rationalize the decisions made by others. Shade had honey-colored eyes, brown hair and gold skin. He was tall, though not quite as tall as his older brothers, with a lean frame. Shade had the mutation that granted him a Silver-like ability despite having Red blood. Shade was a teleporter, meaning he could "jump" other people and objects as long as he was touching them. He could only teleport certain objects and certain amounts of people, depending on size, weight, and amount.

She is a ruthless Silver noble and a powerful Magnetron from House Samos. Initially introduced as a haughty antagonist and rival to protagonist Mare Barrow, she evolves into a complex ally who fights to protect her family and her true love, Elane Haven. She is often considered as a narcissist and even directly disobeyed her trainer so she could fight Mare. But Evangeline shows love towards Ptolemus, her brother, and Elane Haven, her lover. Evangeline has silver hair and usually wears dresses made of metal so she can reshape them when needed.

Mare's best friend, a war orphan, and the apprentice of a fisherman in the Stilts. After his master dies, Kilorn would have been sent to the war, but instead, joins the Scarlet Guard. Bright green eyes, lithe and athletic build, agile and fast. Fiercely loyal, playful jokester, stubborn, defiant, jealous and insecure sometimes.

A Silver noblewoman who belongs to House Haven and possesses the magical ability to manipulate shadows. She is most notable for her secret romance with Evangeline Samos.