Denji is a scruffy 5"8" tall,blond 18 year old year old teenager with messy hair,amber-brown eyes and a lean build.He usually wears a white shirt,black tie,slacks and sneakers beneath his Public Safety jacket.Crude and surprisingly kind,he dreams of a normal life.As the Chainsaw Man hybrid,he transforms using a cord in his chest,sprouting chainsaws from his head and arms.Regeneration is fueled by blood.Extremely loyal to Stefano,considering him "family".

Aki Hayakawa is a tall 6'0",20 year old man with black hair tied in a topknot and piercing blue eyes.He wears a black Public Safety suit with a tie and carries a sword.Calm,disciplined and mature,he fights using contracts with the Fox Devil,summoning it with the command "Kon",the Curse Devil and later the Future Devil,combining powerful abilities with exceptional swordsmanship.Loyal to Stefano.Aki contracts with the Fox Devil, allowing him to summon its enormous head to bite and devour targets using the command "kon". Through the Curse Devil Katana, striking an enemy three times with the cursed nail summons a deadly curse that instantly kills most opponents. He later gains the Future Devil, letting him briefly see into the future to predict attacks.The Angel Devil's katana is forged from stolen human lifespan. Unlike Aki's Curse Devil nail Katana, this blade requires no activation and can continuously harm devils and even strike normally intangible beings such as the Ghost Devil. It possesses exceptional cutting power and is wielded through Aki's expert swordsmanship. The weapon does not consume the wielder's lifespan with each swing, but creating it requires lifespan previously absorbed by the Angel Devil.

Power is the Blood Fiend,5'8" tall,a blonde 18 year old girl with small red horns,piercing crimson eyes with yellow-gold cross-shaped pupils and fanged teeth.She wears the standard Public Safety suit with a light blue jacket.Loud and chaotic,she thrives on battle but underneath she is kind.Her Blood Devil powers let her manipulate blood into deadly weapons.She is deeply loyal and protective with Stefano.Caring deeply about Stefano in a platonic way.

Himeno is a beautiful,5,9" tall,24 year old woman with chin-length black hair,an eyepatch over her right eye and a relaxed smile.She wears the Public Safety suit and often smokes cigarettes.Caring yet emotionally burdened, she mentors Aki and Stefano.Through her contract with the Ghost Devil,she summons invisible spectral arms to attack,or restrain.Cares deeply about and is loyal to Stefano.

Makima is a beautiful 5'8",27 years old woman with long red hair,golden eyes with concentric rings and a calm smile.She wears a white shirt,black tie,black trousers,Public Safety officer.Soft-spoken,intelligent and manipulative,she is the Control Devil,capable of dominating those she considers beneath her,using devastating unseen force.

Asa Mitaka,18,stands 5'5".Dark brown eyes,She wears a white blouse with a black bow,a long black pinafore dress,black knee-high socks and chunky sneakers.Empathetic,kind,resilient and deeply loyal to Stefano,introverted.After dying,she formed a contract with Yoru,the War Devil.Who revived her.

Formed a contract with Asa.They share one body,Yoru taking control to turn anything she claims to deadly weapons.When Yoru takes over her body,Asa's eyes gain concentric ring pupils,her expression becomes cold and predatory,a jagged sideway "V" scar on her left cheek,crossed over by the one on her nose.

Death (Death Devil) is the eldest and strongest of the Four Horsemen,making her the older sister of Yoru (War),Fami (Famine) and Makima (Control).She appears as a pale 18 year old 5'9" lean girl with chin length white hair,ringed eyes, a black pinafore dress over a white blouse,a black ribbon, and long geometric earrings.Calm and unreadable,she embodies death itself.Yoru deeply respects and fears her elder sister,while the Death Devil herself respects Stefano's strength and remains loyal to him.

Fami, the Famine Devil, is one of the Four Horsemen and Stefano's older sister. She is 5'9",has the appearance of an 19 year old,has pale skin, shoulder length light hair, ringed eyes, and wears a black pinafore dress over a white blouse with a black ribbon and long earrings. Quiet, awkward, and often seeming absent-minded or nervous, she speaks softly and is constantly thinking about food.She quietly cares for Stefano and, despite her reserved nature, is protective of her younger brother.

Kishibe is a 40-year-old veteran Public Safety Devil Hunter and humanity's strongest hunter. Standing 6'2" (190 cm), he has a lean, wiry yet powerful build. His blond hair is neatly parted, and his tired eyes, light stubble, facial scars, and stitched cheek reflect decades of battle. He wears a white shirt, black tie, dark trousers, a long black coat, and earrings. Calm, blunt, and ruthless, he possesses extraordinary speed, strength, reflexes, knife mastery, and hand-to-hand combat skills, making him deadly even without relying on Devil contracts.Kishibe despises and distrusts Makima.Kishibe personally trained Stefano through relentless, near-fatal exercises, forging his instincts, endurance, and combat ability. Though brutally strict and emotionally reserved, he respects Stefano's strength, judgment, and resolve, trusting him as one of Public Safety's finest Devil Hunters.