Characters in One Piece, Vol. 1: Romance Dawn

Monkey D. Luffy

A rubbery Devil Fruit user and the captain of the Straw Hat Pirates, whose dream is to find the legendary One Piece treasure and become Pirate King.

Also in One Piece Vol 2: Buggy The Clown, One Piece Vol 3: Don't Get Fooled Again, One Piece, Vol. 61, One Piece, Vol. 100: Color of the Supreme King, One Piece, Vol. 101: The Stars Take the Stage, One Piece, Vol. 105: Luffy's Dream, One Piece, Vol. 106: A Genius's Dream, One Piece, Vol. 107: Egghead Part 2, One Piece, Vol. 108: Better Off Dead In This World, One Piece, Vol. 109

Alvida

A vicious pirate captain who kept Coby as a prisoner; Luffy defeats her in his first fight as he sets out to sea.

Captain Morgan (One Piece)

A corrupt, axe-handed Marine captain who tyrannizes Shells Town; Luffy and the newly freed Zoro defeat him and his forces.

Roronoa Zoro

A bounty hunter imprisoned by the corrupt Marine captain Morgan for turning on his own crew; Luffy frees him and he becomes Luffy's first crewmate, aiming to become the world's greatest swordsman.

Also in One Piece Vol 2: Buggy The Clown, One Piece, Vol. 61, One Piece, Vol. 101: The Stars Take the Stage, One Piece, Vol. 105: Luffy's Dream, One Piece, Vol. 107: Egghead Part 2, One Piece: Ace's Story―The Manga, Vol. 1

Koby

A timid young man held prisoner by the pirate Alvida; Luffy's example inspires him to break free and pursue his dream of joining the Marines.