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A O[4] is an infamous New World pirate and captain of the A O Pirates.[2] He and his crew were subordinates to Whitebeard.[1]


A O is a very tall man with a long, square shaped face, hollow eyes under prominent eyebrows, dark sideburns that go all the way down to his chin, and greenish long wavy hair. On his head, he wears a yellow and brown striped bandanna and over it is a tricorn captain's hat with what appears to be his Jolly Roger on it, a white skull wearing an animal-like hood. He also wears a dark blue, open shirt with the sleeves rolled up and a ruffled collar, and elaborate earrings made up by three little jewels each on both ears.[1]


A.O. Concept Art.png
Concept Art of A. O.
A O Anime Concept Art.png
A O's full appearance.


Not much is known about A O's personality other than that he is very loyal to Whitebeard since he was willing to risk his own life to save Ace from execution.[1] He was overjoyed when Luffy saved Ace, cheering with his fellow allies.[5]


Whitebeard Pirates

Edward Newgate

Like the rest of Whitebeard's subordinates, A O is very loyal to Whitebeard.[1]

Portgas D. Ace

A O was close enough to Portgas D. Ace to call him "Ace-chan", and when he found out Ace was in danger, he voluntarily joined the rescue mission of the Whitebeard Pirates.[3]

Abilities and Powers

A O is a fearsome pirate who has managed to make himself an infamous reputation in the New World, becoming Whitebeard's subordinate.[6]


A O carries with him a sword fitting his size, with a long curved blade.



Less than three years before the Summit War of Marineford, A O and his crew had been trying to invade Whitebeard's territory. However, they soon became subordinate to the Whitebeard Pirates.[7]

Summit War Saga

Marineford Arc

A O and his crew, along with a fleet of 42 other infamous pirate crews subordinate to the Whitebeard Pirates, attacked Marineford to save Portgas D. Ace from his execution.[1] Later, he and the other New World pirates allied with Whitebeard Pirates were attacked by the Pacifista army.[8] After Squard stabbed Whitebeard and claimed that Whitebeard sold out his subordinate crews to save Ace, A O began to doubt Whitebeard. After Whitebeard proved his loyalty by giving the pirates an escape route, A O was happy to know the truth and continued fighting the Marines.[9]

A O and other New World captains support Luffy and Ivankov.

After the siege wall was raised and Admiral Akainu melted the ice with his magma powers, A O boarded Whitebeard's hidden ship and entered the plaza with the help of Little Oars Jr.[10] Later, he followed Whitebeard's order in supporting Monkey D. Luffy[11] and rejoiced when Luffy managed to free Ace.[12] However, their excitement was short-lived when Akainu provoked Ace and took his life. When the admiral aimed for Luffy's life, A O and the other pirates made protecting Luffy their top priority.[13][14]

When the Red Force arrived at Marineford, A O was shocked to see that the Emperor Shanks and his crew were there.[15] After Shanks called for a ceasefire, A O and the other pirates left the battlefield.[16]

The following events are Non-Canon and therefore not considered part of the Canon story.

Post-War Arc

After the war, A O and the rest of the allied crew attended Whitebeard and Ace's funeral on an undisclosed island somewhere in the New World.[17]

Concludes non-canon section.

Four Emperors Saga

Zou Arc

Weevil decimates the A O Pirates.

Two years after Whitebeard's death, A O and his crew got into an argument with Edward Weevil, who had already destroyed 15 other subordinate crews on his path to take out the remnants of the Whitebeard Pirates. The fight was caused in part by their claim that the only sons of Whitebeard were his crew, and so Weevil decided to wipe them out in retaliation for their relation to his alleged father. During the fight, the A O Pirates were completely wiped out, with the town being destroyed in the process and A O himself being knocked out as the surrounding area went up in flames.[18]

Major Battles

Anime and Manga Differences

In the manga version of Whitebeard and Ace's funeral in Chapter 590, A O cannot be seen among those in attendance. The anime version of the scene in Episode 505 shows him attending.[17]

In the anime, the report of his defeat is alongside those of Elmy, Ramba, Whitey Bay, Bizarre, the Decalvan Brothers, and Palms.[19]


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 One Piece Manga and Anime — Vol. 56 Chapter 551 and Episode 460, A O makes his debut.
  2. 2.0 2.1 2.2 2.3 One Piece Manga and Anime — Vol. 80 Chapter 802 (p. 6) and Episode 751, A Marine soldier refers to A O's crew as the A O Pirates
  3. 3.0 3.1 One Piece Blue Deep: Characters World (p. 20), A O's birthday is given.
  4. One Piece Green: Secret Pieces (p. 337), A O's name is revealed.
  5. One Piece Manga and Anime — Vol. 58 Chapter 572 (p. 2) and Episode 481, A O and his allies cheer for Luffy after he freed Ace.
  6. One Piece Manga and Anime — Vol. 56 Chapter 551 (p. 12-13) and Episode 460.
  7. One Piece Magazine Vol.2 — A O Pirates were revealed to have tried invading Whitebeard's territory.
  8. One Piece Manga and Anime — Vol. 57 Chapter 562 and Episode 471, Squard stabs Whitebeard and claims Whitebeard sold them out.
  9. One Piece Manga and Anime — Vol. 58 Chapter 563 and Episode 472.
  10. One Piece Manga and Anime — Vol. 58 Chapter 567 (p. 16) and Episode 476.
  11. One Piece Manga and Anime — Vol. 58 Chapter 570 (p. 6-7) and Episode 479.
  12. One Piece Manga and Anime — Vol. 58 Chapter 572 and Episode 481.
  13. One Piece Manga and Anime — Vol. 59 Chapters 574575 and Episodes 483484.
  14. One Piece Manga and Anime — Vol. 59 Chapter 578 and Episode 487.
  15. One Piece Manga and Anime — Vol. 59 Chapter 579 and Episode 488.
  16. One Piece Manga and Anime — Vol. 59 Chapter 580 and Episode 489.
  17. 17.0 17.1 One Piece Anime — Episode 505, A O attends Whitebeard and Ace's funeral.
  18. One Piece Manga and Anime — Vol. 80 Chapter 802 and Episode 751, A O and his crew defeated by Weevil.
  19. One Piece Anime — Episode 751, A O's news report on Kizaru's desk.

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