Vito

"Monster Gun" Vito is a member of the Fire Tank Pirates, working as the crew's advisor. Vito is a tall, pale man with a long snake-like curling tongue that sticks out of his grinning mouth. His hands are disproportionately large for his body and have a tattoo on the back of them that matches the one on his forehead. He has dark hair that is slicked back and sticks up in a curl on the back of his head. Like most members of the crew, he wears a suit coupled with a cravat and a coat draped over his shoulders. His coat has a feathered collar and his eyes are covered by a pair of small round sunglasses. He also has a pair of holsters where he keeps his large revolvers.

Vito treats his superiors with respect and even praises them occasionally, as shown with Capone Bege and Big Mom. Despite his high regard for them, he recognizes that their actions are often quite cruel and selfish, and expresses a measured degree of sympathy for those negatively impacted by them. This is best shown when he gave Sanji a photo of his bride-to-be, in order to soften the blow of his forcefully arranged marriage. He has a tendency to finish his sentences with "rero", the onomatopoeia for licking. Vito is talkative and has a tendency to follow people around, even when they do not desire his company. He also has a tendency to put people off with his mannerisms, especially when his tongue is involved. Like many other people, he has his own unique laugh, which is "Nyororo". Vito respects his captain and obeys his orders. He also lit Bege's cigar without being asked. Like the rest of the Fire Tank Pirates members, he addressed Bege as "Father". Vito and Gotti have some mutual respect for each other  as when Sanji disrespected Vito, Gotti pointed his gun arm at Sanji and warned the cook not to cross the Fire Tank Pirates but Vito begged him not to harm Sanji.  Vito holds a reverential view of Big Mom, or at least her tea parties, as he stated that even demons would come to them and those who did not would immediately regret it. Despite not directly being in the Big Mom Pirates, Vito still refers her as "Mama". However, Vito is currently taking part in his captain's plan to overthrow Big Mom.

Vito's first encounter with Sanji was hostile, as he held Nami and Chopper hostage while telling Sanji the repercussions of refusing to attend Big Mom's Tea Party. He also conveyed to Sanji Big Mom's personal threat to take retribution against someone Sanji loved, if he dishonored her invitation. Vito later becomes markedly more friendly to Sanji, revealing that he is an enormous fan of the fictional comic strip, Sora, Warrior of the Sea, and that he idolized its villain group, Germa 66. Because of this reverence, he was excited and pleased to meet Sanji, a member of the family that commands the Germa, and constantly tries to engage Sanji in a conversation about them. Sanji, by contrast, finds Vito's enthusiasm about his family irritating and attempts to shake Vito off whenever the latter follows him around. Despite Sanji's irritation at him, Sanji's heritage as a Germa prince led Vito to ambush and shoot down Bobbin when the latter chased after the Straw Hat cook. Vito explained later to his captain that he did so because Germa 66 are his idols. He expressed great excitement in meeting Sanji again when the latter arrived at the Fire Tank Pirates' hideout. Vito appears to be powerful enough to capture Nami and Tony Tony Chopper, the latter of which was in his Kung-Fu Point, and drag them by the back of their heads to his captain without resistance. He appears to be highly skilled in sneak attacks, as he laid a successful ambush on Bobbin, who is a powerful pirate and noted to be a heavyweight in the Big Mom Pirates. He carries a pair of dark revolver pistols that are big enough for him to use with his large hands.