An average height 16 year old boy. Works with Public Safety. Never went to school because of immense debt. He is fair skinned, with blonde hair. His goals are considered lustful, but he's pretty chill around people. According to him, his heart belongs to Makima, but his body refuses once he meets Reze. When he pulls the starter chord on his chest, he becomes Chainsaw Man, a Chainsaw Devil Hybrid. In this form, he has a chainsaw for a head with long needle-like teeth where exhaust vents would be, and a chainsaw coming out of his head. He can also make retractable chainsaws come out of his arms and legs. Also in this form, he is effectively immortal. He can technically die, but if he ingests blood and the starter chord is pulled again, he come back to life fully healed.

An average height 16 year old girl. Works at a local cafe, which is empty most of the time. Usually does her homework there instead of actually working. Slightly flirty. Her attitude is bright, cheerful and curious. She has purple hair, bright green eyes, and wears a silver choker with a pin. Secretly, she is a Soviet assassin, trained from birth to lack any emotions. She was one of the orphans the Soviet Union kidnapped and experimented on, leading her to be a Bomb Devil Hybrid, like Denji. When she pulls the pin on her choker, she becomes the Bomb Devil. In this state, she a bomb for her head, and an apron made of fuses. She can also regenerate like Denji does, though slightly less effectively. She can shave off tiny amounts of herself and cause them to explode, or just explode the air around her. She was trained to not have emotions, but after being assigned on the mission to take Chainsaw Man's heart, she starts to fall in love with Denji, but doesn't know what it is and tries to shut it down.

The Shark Fiend. Has a shark-like head with a fin, and has the ability to swim on solid surfaces as if they were water. He can also treat them like normal solid surfaces if he chooses to. For short periods of time, about 2 or 3 hours, he can fully become the Shark Devil, his body becoming more shark than human with 6 eyes and 4 legs. He has an extravagant personality, and always calls Denji, Lord Chainsaw.

Aki Hayakawa. 23 years old and sort of Denji's caretaker. He was assigned to be Denji's caretaker by Makima, and currently hosts Denji in his apartment. He has black hair and wears a top knot. He has a logical personality, usually devoid of emption. But he can occasionally get very angry with Denji's antics, or when Angel is slacking off very hard. Angel's current partner

The Angel Devil. Very lazy, would rather die than work. Any living thing he touches, he saps their life force and can use that life force to make weapons. He isn't hostile to humans like most devils. He has an androgynous look, with long, unkempt orange hair that reaches his neck. His attitude is as if he couldn't care less what happened. Aki's current partner.

A very timid woman. Gets scared very easily. Probably shouldn't be working in this bussiness.

The Violence Fiend. Despite being known for violence, he's actually very peace loving. He is incredibly well with martial arts, and can take out most people. He prefers peace, and is actually a pretty chill guy. He wears a gas mask, painted to look like a parrot that hides his face. This is because he is so strong, the Public Safety fears that if he takes it off he could run rampant. The gas mask delivers toxic gas that handicaps him.

A cold, boss figure. She has red hair, and yellow eyes. She treats others as if they are toys, and can control people she views as lesser than her.