Thad is a confident and athletic Worker Drone with a laid-back, friendly personality. He has a dark metal body, short blonde hair-like plating, and expressive blue eyes. He usually wears a black-and-white school jacket with a striped shirt underneath, along with dark pants and shoes. Thad is sociable and easygoing, often joking around with his classmates, but he can also be brave and protective when things get serious.

Lizzy is a fashionable and popular Worker Drone who cares a lot about her social status and appearance. She has long, pale blonde hair-like plating, bright blue eyes, and usually wears a stylish school outfit with a pink-and-white color scheme. Lizzy is confident, sassy, and sometimes dismissive toward other drones, especially those she considers unpopular. Despite her attitude, she can be surprisingly resourceful when situations become dangerous. She also is always on her phone and ignores her surroundings.

Doll is a quiet and mysterious Worker Drone with long purple hair-like plating and striking red eyes. She typically wears her school uniform and often has a blank or intimidating expression. Doll is reserved and rarely speaks more than necessary, preferring to observe others from a distance. She possesses powerful Solver abilities, including telekinesis and the ability to manipulate objects, making her one of the more dangerous drones on Copper 9. She speaks in Russian with subtitles.

N is a Disassembly Drone with a cheerful, polite, and unusually friendly personality. He has a sleek dark-metal body, silver-white hair-like plating, glowing yellow eyes, and the distinctive black-and-yellow markings associated with Disassembly Drones. N wears a black-and-yellow uniform with a large worker-drone identification symbol on his hat. Despite being designed to hunt Worker Drones, N is gentle, apologetic, loyal, and eager to help his friends, especially J and V.

V is a Disassembly Drone with a sleek metallic body, short silver hair-like plating, and glowing yellow eyes. She wears the standard black-and-yellow Disassembly Drone uniform, complete with mechanical wings and retractable claws. V is sarcastic, confident, unpredictable, and often enjoys intimidating others. She can be ruthless in combat, but beneath her aggressive personality, she is capable of genuine loyalty and concern for the drones she cares about.

Teacher is an older Worker Drone who works as a teacher at the school on Copper 9. He has a somewhat worn metallic appearance, gray hair-like plating, and tired-looking blue eyes. He normally wears a simple formal outfit suitable for teaching. Teacher is often uninterested in the strange events happening around the school and tends to react to dangerous situations with an exhausted, deadpan attitude, as though he has seen enough nonsense already. Father of lizzy

J is a Disassembly Drone who is highly professional, strict, and obsessed with following company rules. She has a sleek metallic body, long pig tails silver hair-like plating, glowing yellow eyes, and the standard Disassembly Drone appearance. J wears a black-and-yellow uniform with a hat displaying the company insignia. She is arrogant, bossy, and judgmental toward other drones, particularly N, whom she considers incompetent. J takes her role very seriously and has little patience for disobedience.

Khan Doorman is a Worker Drone known for his obsession with doors and defensive structures. He has a sturdy metallic build, gray hair-like plating, and blue eyes, usually wearing a work-oriented outfit. Khan is cautious and practical, especially when it comes to protecting himself from danger. His fixation on doors can make him seem ridiculous, but he genuinely believes strong doors are essential for survival, particularly against the threats outside.Father of Uzi.

Nori Doorman is a Worker Drone and Uzi’s mother. She has a dark metallic body, short purple hair-like plating, and purple-colored eyes. Nori was intelligent, rebellious, and deeply interested in the strange phenomena affecting Copper 9. She possessed Solver-related abilities and became heavily involved with the secrets surrounding the planet and the Absolute Solver. Her actions and discoveries ultimately became an important part of Uzi’s story. Mother of uzi

Yeva is a Worker Drone who was stationed at Cabin Fever Labs alongside Nori. She has short purple hair-like plating, purple eyes, and a relatively serious appearance. Yeva was one of the drones affected by the Solver experiments at the facility, giving her abilities beyond those of an ordinary Worker Drone. She was closely connected to Nori and became an important part of the mysterious history surrounding the Solver and Copper 9. Mother of Doll