Gol D. Roger — the executed Pirate King whose treasure/One Piece started the Great Pirate Era. - Monkey D. Luffy — protagonist; ate a Devil Fruit, his body is rubber, and he seeks the One Piece to become King of the Pirates. - Shanks — Luffy’s idol and inspiration.
The context also says Luffy is “surrounded by a bevy of skilled fighters and thieves” (his crew), but no other crew members or main characters are named.
This is incomplete for a full list of One Piece’s main characters. If you want a complete roster (Straw Hat crew, major allies/enemies, or arc-specific characters), please upload notes or specify which characters/arcs you mean — or allow adding external sources — and I’ll provide a concise recap.
Sources
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