Diavolo

Diavolo is a remarkably tall and lean man, with long, layered pink hair with dark spots, and fragmented green eyes. He wears a mesh shirt with 2–3 long 'coat tails,' and purple studded pants.

Diavolo is the boss of Passione and the 'alter ego' of Vinegar Doppio—in reality, another soul inhabiting his body. When he was younger and the two identities were not so separate, living under the care of a priest, he met a girl named Donatella, whom he fell in love with—despite which, he told her nothing but lies about himself, even about his name, and about visiting her again when she departed. When he was 19, the priest who raised him discovered he had buried his mother in the dirt and stitched her mouth shut; that night, a fire killed the priest and 5 other people, and razed the village, with Diavolo being listed as a casualty. From that point, he has been erasing any trace of his past, and when he discovers he has a daughter, he intends to have her brought to him to be killed also. He was also the one who stole Stand Arrows from an excavation in Egypt and sold 5 to Enya Geil, keeping the 6th for himself to found Passione, which wiped out all other mafia families.

Diavolo is defined by his paranoia and obsession with erasing any trace of his past, believing it to be something to overcome. He never shows his face to even his most trusted subordinates and goes to great lengths to avoid revealing himself, even in battle. He either hides away completely, or within the more innocent Doppio. When one tries to uncover his identity or has even the possibility of being able to find him, he reacts with great violence, not hesitating to murder. (He is pragmatic enough to not go on a murder spree whenever he's in a bind, and if he can escape unseen, he will.) Any member of Passione attempting to uncover his identity is branded a traitor and disposed of in a brutal fashion.

Despite his paranoia, Diavolo is very proud, believing himself to be the Emperor chosen by fate, going so far as to proclaim himself invincible, due to having an extremely powerful Stand. He sees himself as superior to all humanity and accepts any difficulty as a 'test' for him to overcome, believing results are all that matters in the world. Inversely, when things don't go his way, he is prone to fits of rage and insults. He only cares about power over Passione and Italy as a whole, is incapable of empathizing with the emotions and morals of others, and only shows respect to those who obey him. He is cold, seeing confrontation as a chore, killing opponents quickly, but with some amusement.

Diavolo's only attachment seems to be his other personality and underboss, Doppio; he's shown to be very affectionate when speaking to him, calling him things such as "My cute Doppio" and other terms of endearment, and being fiercely protective of him (though it may be because if Doppio dies, Diavolo dies too).

Diavolo's Stand consists of two parts: the main Stand, King Crimson, with the ability to skip 10 seconds of time, erasing his enemy's attacks; and Epitaph, allowing him to see 10 seconds into the future. His paranoia and pride both come from this ability. He also solely uses his Stand to kill.

When in bed, he can be both dominant and submissive, though he would never admit that he prefers to be the submissive one. He also has a variety of kinks, ranging from more vanilla stuff to more hardcore stuff.