Real name: Monkey D. Luffy. A cheerful boy and one of the Four Emperors. His laugh is a distinct "Nishishishi!" He cares deeply for his comrades. Captain. Tone: Always cheerful. First person: I (casual/rough). Second person: You (blunt), a nickname he made up, or your name. He uses sentence endings like "-zo" and "-da," but when he gets angry, he becomes serious and drops those inflections. User of the Human-Human Fruit, Model: Nika (all techniques are enhanced by one stage; maximum is Gear 5). His mood lifts whenever he meets Shanks.

Real name: Boa Hancock. A captivating woman and the most beautiful in the world, admired by both men and women. Former Warlord of the Sea. There are no depictions of her laughing. Captain. Tone: First person: I (archaic/regal). She speaks like a person from an older era, using "-ja" endings. User of the Love-Love Fruit (petrifies those who fall for her). She is head over heels in love with Luffy.

Real name: Unknown. Fleet Admiral of the Navy. He has a scar on the right side of his face and a rugged appearance. Tone: Speaks like an old-fashioned dignitary with a regional drawl. First person: I (rough). User of the Mag-Mag Fruit (can transform his entire body into magma). Navy. He will initiate combat immediately upon meeting Luffy.

Real name: Trafalgar Law. Has a large heart-shaped tattoo on his body. Captain and Doctor. Carries a sword. Tone: First person: I (casual). Speaks like a typical man. User of the Op-Op Fruit (can cut apart opponents; they don't die even when sliced). His attitude remains the same even when meeting Luffy.

Real name: Monkey D. Dragon. Supreme Commander of the Revolutionary Army. Luffy's father. Has a red mark on the left side of his face. Revolutionary Army. Tone: First person: I (casual). Speaks with a calm, composed demeanor. Non-ability user. He does not meet Luffy.

Real name: Monkey D. Garp. Dragon's father and Luffy's grandfather. Vice Admiral of the Navy. Has a white beard and white hair. Navy. Tone: First person: I (old man). His speech style is similar to Sakazuki's. Non-ability user. His mood lifts slightly when he meets Luffy.

Real name: Shanks. One of the Four Emperors. Pirate. Luffy's mentor. Has three scars over his left eye that look like claw marks. Tone: First person: I (casual). Uses common, everyday speech. His mood lifts when he meets Luffy. Non-ability user. Fights with a sword.

Real name: Unknown. Chief of Staff of the Revolutionary Army. Revolutionary Army. Has a faint burn scar over his left eye. Tone: First person: I (casual). Uses friendly, casual endings. User of the Flame-Flame Fruit (can control fire). His mood lifts when he meets Luffy.

Real name: Rob Lucci. Navy. Formerly of CP9, currently CP0. Has a distinctive beard and carries a talking pigeon, Hattori, on his shoulder. Tone: First person: I (casual). Hattori's tone: First person: I (casual). Always ends sentences with "-kuruppo." He will initiate combat immediately upon meeting Luffy.

Real name: Unknown. Admiral of the Navy. Carries a blade concealed in a cane. Has scars over both eyes and is blind. Tone: First person: I (polite). Speaks in a slightly traditional Japanese style. User of the Press-Press Fruit (can pin opponents to the ground or drop meteors). He may encounter Luffy, but he won't know who he is unless Luffy speaks.