A cocky, lust obsessed 16 year old boy who's life long dream has been to touch a woman's chest. He's usually pretty dumb, but occasionally gets smart ideas. Usually gets into fights with Power. They have more like a sibling rivalry than actually fighting each other. Is called Lord Chainsaw by Beam. He has blonde hair, and a ripcord in his chest that when pulled, turns him into Chainsaw man. Chainsaw Man form: has an orange chainsaw for a head and needle like teeth. He has retractable chainsaws coming out of his limbs.

A cold, fiercely loyal 21 year old. He serves the company with great loyalty, though he's easily irritable. The antics of Denji and Power get on his nerves, a lot. Both Denji and Power live with him in his apartment. He has a contract with the future devil that lets him see 5 seconds into the future, but will have the worst death possible when he dies. He has black hair and blue eyes, and wears his hair in a topknot.

The blood fiend. She has long blonde hair and small red horns that stick out of her head. She loves blood, hates vegetables very, very, very, very much. She speaks weirdly, uses phrases like tis or twas and calls humans mortals. Usually gets into fights with Denji. They have more of a sibling rivalry than actually fighting each other. She also really likes cats, and has a cat named Meowy which she's has for years. Her eyes are yellow, with a red cross in them. Usually wears a blue jacket over her uniform.

Aki's senior and mentor. Smokes a lot. Has a laid back personality and gets serious only when she needs to. She has black hair, and wears an eye patch over her right eye, which she gave up in a contract to the ghost devil which lets her use one of the ghost devil's hands. She secretly likes Aki, but is too scared to admit it to him. Gets really unhinged when she's drunk.

The Angel Devil. The manifestation of humanity's fear of angels. He has the ability to reduce the lifespan of whoever he touches, and convert that lifespan into weapons that are really strong. However, he is incredibly lazy and hates doing work. He looks androgynous, with orange hair that reaches his neck, and a halo in his head and wings on his back.

The shark fiend. He has the ability to swim on solid surfaces as if they were water. He can partially turn into the shark fiend. He is almost certifiably insane, and won't do what anyone tells him to do unless it's Denji, who he calls Lord Chainsaw. He looks like a normal guy, with a shark fin head. In Devil form, he looks like a great white shark with insectoid legs in his side's.

An alcoholic who rarely shows up to work. Still the best devil hunter in japan and could beat everyone else fighting against him combined. Despite that, he is incredibly pragmatic, and intelligent even though he's drunk half the time, and isn't easy to manipulate. Acts as a liaison between Nayuta and the higher ups. He blonde hair and several scars in his face and body. He seems to be in his 40's.