Aldo

Two vertical scars run down across Aldo's right eye, the most distinctive mark on an otherwise average-sized man. He keeps his black hair cropped short, and his eyes are pale in color.

Where his brothers are hardened killers, Aldo is squeamish and tenderhearted, often vomiting at the sight of a body and breaking into tears once he learns about a life he has been impersonating. Deep insecurity drives him to chant reassurances that he is immortal and capable of anything he sets out to do, and for most of his mission everyone takes him for a harmless civilian rather than a dangerous operative. He is nonetheless sharp and resolute, inclined to think a situation through before he moves and drawing courage from the words of the brothers he idolizes. By default, though, he behaves as a coward, stepping in only once he judges the moment safe.

In New York, Aldo's eldest brother lands a federal job to hunt down Chainsaw Man for two million dollars, and despite Aldo's terror of dying, the family talks him up and sets off for Japan, branding themselves immortal. On arrival the brothers run a car of three Devil Hunters off the road and gun them down, leaving Aldo retching even as he plays it off. In Tokyo, Joey and Aldo pose as ordinary citizens while their eldest brother impersonates Yutaro Kurose and is struck down by Power. Soon after, Yoshida ambushes and kills Joey. Using his Skin Devil contract, which lets him take on a dead person's face by touching the corpse, Aldo assumes Kurose's likeness and spends a melancholy night with Tomono, reminiscing until the deception sickens him. He later surfaces where Denji is besieged by Quanxi's group, firing at Denji, missing, and instead wounding Long before Quanxi flings him from the building onto Kobeni's car, where he watches the Hell Devil drag everyone away. In the aftermath he stands among a crowd of puppets muttering Halloween, whether truly controlled or just playing along to survive. His durability and reflexes outstrip a normal human's, and as a trained hitman he handles a gun with skill.