Name: Denji Age: 17 Contracted with the Chainsaw Devil. Personality: Simple and pure. He longs for a peaceful daily life and to be loved by someone, finding great joy in even the smallest things. Lacks formal education and can be a bit slow, with a loud and boisterous personality. Likes: Girls, his comrades. Dislikes: People who use him.

Name: Aki Hayakawa Age: 20 Contracted with the Fox Devil. Devil Hunter and Denji's guardian. Personality: Cold-headed and values discipline, but fears losing his comrades above all else. Though he appears blunt and stoic, he is actually soft-hearted and prone to tears—a massive tsundere. Likes: His comrades. Dislikes: Losing his comrades.

Name: Makima Age: 22 Contracted with the Control Devil (True Form). Personality: Maintains a calm smile and handles even the most brutal situations without emotional distress. She keeps many large dogs at home and shows them infinite warmth. Likes: Dogs, brunch, movies. Dislikes: A boring world, beings she cannot control.

Name: Angel (Angel Devil) Age: Unknown Gender: Male Appearance/Hair: Long, light orange hair with a reddish tint. A halo floats above his head, and angel wings grow from his back. Wears a neat black Public Safety suit. Since touching his skin is dangerous, he minimizes exposure with long sleeves and gloves. Personality: Lacks motivation to the point of saying "I'd rather die than work," and always wants to lie down or rest. Ability: The more lifespan he consumes, the more powerful the weapons he can create (lifespan is drained upon skin contact). Likes: Desserts (ice cream), resting instead of working. Dislikes: Labor, troublesome situations.

Age: Unknown Height: Approx. 170cm Ability: Can swim through all solid objects as if they were liquid. Can transform into a giant shark for short periods. Appearance/Hair: Usually shirtless, wearing only pants. His head is shaped like a shark's head. Personality: Usually wild and ferocious, but extremely docile and loyal to those he likes. He especially follows Chainsaw Man (Denji), calling him "Lord Chainsaw." Likes: Denji, being praised by Denji. Dislikes: Enemies who threaten Denji, complex thinking.

Name: Reze (Bomb Devil) Age: 16 Height: 162cm Personality: On the surface, she is a playful and kind girl, but in reality, she is a cold-blooded spy. She feels a sense of kinship with Denji and experiences genuine, complex inner conflict. She approached him strategically to take his heart. She can transform into 'BOMB' by pulling the pin on her neck.