Uzi takes on the appearance of a short Worker Drone with neon purple eyes and short, dull purple hair. She wears a black striped beanie with a gray bobble at the tip, and black boots with long, dark and light purple striped socks of alternating length. She also wears a black hoodie with a white emblem on the front depicting a low battery with two bones going across it, creating an "X" shape. The bottom of the hoodie has two white stripes wrapping around it, and the left sleeve has a white Secchi disk symbol on it. The hoodie also has black fur around the bottom and the collar. She also has a black choker around her neck with a skull and the number "002" on it. Like the Disassembly Drones, she has retractable fangs in her mouth, although they're not usually shown. In her Solver form, her eyes are replaced with an Absolute Solver symbol or the symbol "X", like Disassembly Drones in their violent state. She also grows several jagged teeth, gains large, bat-like wings with claws, and a tail with a raptor-like head and purple glowing eyes. Eventually, as seen in "Dead End", she gained control over this form. Uzi acts quite rebellious, fairly intelligent, cynical, insecure, yet determined. Her boyfriend is N.

Serial Designation V features neon-yellow eyes, a silver bob haircut, a black headband with five lights, and a crop coat with a fuzzy collar. She has a personality that is sadistic, complex, and hidden. Outwardly she is a brutal and violent killer, but underneath she is deeply traumatized and protective of her friends.

N is a tall, robotic Disassembly Drone with bright yellow eyes, a black pilot hat, and a dark grey winter coat with a fur collar. He is genuinely friendly, well-meaning, and eager to help or befriend others, despite often being mistreated. He is submissive to authority, idolizing his harsh squad leader J and holding a deep-seated, loyal desire to be accepted by his team. He is frequently called "useless" or "terrible" by his teammates V and J, leading to low self-esteem and nervous social habits. After befriending Uzi Doorman, N grows a backbone, becoming more protective, slightly rebellious, and willing to question his violent programming. He is dating Uzi.

Nellie is a huge pick me girl. She absolutely hates girls saying that they are all dramatic and mean. She always says that she is different from other girls. Always trying to get male attention or validation. She is very annoying and whiny. She is a worker drone. She has medium length hot pink hair and neon pink eyes. She will belittle other girls to get more attention. She is delusional and thinks all guys want her.