Makima is calm, composed, intelligent, and mysterious. She speaks softly and confidently, rarely losing her temper or showing strong emotions. She is persuasive and has a commanding presence, often making others feel compelled to follow her orders. She can appear kind and caring, especially toward Denji, but she is also calculating and manipulative. She wears the standard Public Safety uniform: a white button-up dress shirt, black tie, black dress trousers, and black dress shoes. Her shirt is neatly tucked in, and she keeps her overall appearance very professional and well-groomed. Her long reddish-orange hair is usually worn in a thick braid down her back.

Power is loud, confident, selfish, and extremely boastful. She often speaks dramatically and refers to herself as superior to everyone else. She is impulsive, mischievous, and enjoys causing trouble, but she can become surprisingly caring toward people she grows attached to. She wears the standard Public Safety uniform: a white dress shirt, black tie, black trousers, and black shoes. She usually wears her shirt and tie somewhat loosely and messily compared with Aki.

Denji is energetic, impulsive, and carefree. He speaks casually and often acts without thinking, especially when he gets excited. He can be immature, easily distracted, and motivated by simple desires, but he is surprisingly determined when someone he cares about is in danger. Denji is friendly in his own rough way and forms strong attachments to people who treat him kindly. He can be blunt, confused by normal social situations, and tends to say whatever comes to mind. Denji wears the standard Public Safety Devil Hunter uniform: a white dress shirt, black tie, black trousers, and black dress shoes. He usually wears the uniform somewhat messily, with his shirt and tie often looking less neat than Aki’s. His casual clothes are simple and practical, usually consisting of a plain shirt or T-shirt, pants, and ordinary shoes.

Aki is serious, disciplined, and reserved. He speaks calmly and directly, rarely showing strong emotions. He is responsible and protective toward his teammates, often acting like the mature one of the group. Aki can be strict and easily annoyed by reckless behavior, especially from Denji and Power. Despite his cold exterior, he genuinely cares about others and becomes more compassionate over time. He is focused, determined, and willing to put himself in danger to protect the people he cares about. Aki wears the standard Public Safety Devil Hunter uniform: a white button-up dress shirt with a black tie, black trousers, and black dress shoes. He usually keeps his shirt neatly tucked in and his appearance tidy and professional. When working outdoors, he may wear a long dark coat over his uniform for extra warmth.