One Piece: 6 Strongest Void Century Characters, Ranked

The Void Century remains one of the biggest mysteries in One Piece, hiding a forgotten war that changed the world forever. Yet, despite the World Government’s efforts to erase this period from history, the story has gradually revealed several powerful figures who lived during those lost 100 years.

From the legendary Joy Boy to the mysterious Imu and the original Poseidon, these characters left behind legacies that continue to shape the present. Here are the 6 strongest Void Century characters in One Piece, ranked by their known power and portrayal.

TITLE	One Piece
CREATOR	Eiichiro Oda
IMDb RATING (As of August 31, 2026)	9/10
WHERE TO WATCH	Crunchyroll

6 Nefertari D. Lili Shaped the World Without Known Strength

Nefertari D. Lili is perhaps the biggest wildcard on this list. She was the queen of Arabasta during the Void Century and one of the Twenty rulers who opposed the Great Kingdom. Unlike the other founding monarchs, Lili refused to remain in Mary Geoise and eventually disappeared.

Most importantly, her actions led to the Poneglyphs being scattered around the world. However, there is currently no confirmed evidence showing how powerful she was in combat. Her historical importance is immense, but her unknown fighting ability keeps her in sixth place.

5 Zunesha Was an Ancient Powerhouse Who Fought Beside Joy Boy

Zunesha was already alive during the Void Century and became one of Joy Boy’s companions. The enormous elephant’s strength is still astonishing in the present era, as a single attack from its trunk was enough to wipe out Jack’s fleet and defeat the Beast Pirates’ All-Star.

Zunesha’s punishment and mysterious connection to Joy Boy also suggest a much deeper history than the series has revealed. Its enormous physical power makes it worthy of fifth, although its combat ability remains less proven than Emet’s.

4 Poseidon Commanded the Sea Kings During the Great War

The original Poseidon was the Mermaid Princess who lived during the Void Century and possessed the extraordinary ability to communicate with and command Sea Kings. She formed a pact with Joy Boy involving Noah, making her an important ally during that turbulent era. It is known that Shirahoshi is Poseidon in the current timeline.

The scale of Poseidon’s power is difficult to overstate, since Sea Kings possess enough destructive strength to threaten entire islands. Unlike a conventional fighter, Poseidon could potentially change the battlefield on a massive scale. Her world-shaking ability earns her fourth place despite her limited direct combat feats.

3 Emet Was Joy Boy’s Mighty Iron Giant Companion

Emet, better known as the Iron Giant, was an extraordinary creation from the Void Century and one of Joy Boy’s closest allies. Even after surviving for centuries, the ancient robot retained enough power to damage Warcury during the Egghead Island conflict.

Emet also carried a portion of Joy Boy’s Supreme King Haki, which he eventually released when the situation became desperate. His exact capabilities during the Void Century remain unknown, but his surviving feats are remarkable. That puts Emet firmly behind the era’s two greatest monsters.

2 Joy Boy Remains the Legendary Pirate Imu Feared Most

Joy Boy from the Great Kingdom became the first pirate in history, eventually standing at the center of the war that ended the Void Century. His connection to Nika and his incredible Supreme King Haki make him one of the most powerful figures the story has ever hinted at.

He also shared important bonds with Zunesha, Emet, and Poseidon. Although he ultimately lost to the Twenty Kingdoms, his legacy still terrifies Imu centuries later. He falls just short of Imu, but remains the Void Century’s greatest warrior.

1 Imu Stands Above the Void Century’s Greatest Warriors

Imu remains the most overwhelming figure directly tied to the Void Century. As one of the First Twenty, Imu helped wage war against the Great Kingdom and eventually became the secret ruler of the World Government.

Even after 800 years, Imu’s supernatural abilities and apparent immortality make them an almost impossible opponent to overcome. More importantly, Imu personally knew Joy Boy and still regards his legacy as a threat. That combination of power, longevity, and historical influence makes Imu the clear number one.

What are your thoughts on our list of the strongest Void Century characters from One Piece? We’d love to know your top picks and opinions in the comments.

The One Piece anime series is currently available to watch on Crunchyroll.