The Doubt Brothers are a pair of Shinuchi serving the Beasts Pirates, instantly recognizable by the giant wind-up keys jutting from their heads. The duo move and act in perfect step with one another, and they took the field during the Raid on Onigashima.
The feature that defines both siblings is the pair of oversized wind-up keys rising from their heads, which they insist have been there since birth. The younger of the two has the heavier build, goes without a shirt, and wears yellow gloves. The elder is leaner, his abdominal muscles on display, and sports a purple shirt reading "DOUBT," rendered in the anime instead as a plain open vest.
The brothers are known for carrying out everything in flawless unison with one another, their movements and actions mirrored as a constant.
As Shinuchi within the Beasts Pirates, the two hold authority over the crew's lesser ranks. Each consumed an Owl SMILE, an artificial Zoan fruit whose granted powers have yet to be shown. When the Raid on Onigashima broke out, the pair stood among the Gifters who confronted Roronoa Zoro and Monkey D. Luffy on the Skull Dome's Live Floor.
The Doubt Brothers are a pair of Shinuchi serving the Beasts Pirates, instantly recognizable by the giant wind-up keys jutting from their heads and known for moving in perfect step with one another.
Both Doubt Brothers are defined by the pair of oversized wind-up keys rising from their heads, which they insist have been there since birth.
The Doubt Brothers hold the rank of Shinuchi within the Beasts Pirates, giving them authority over the crew's lesser ranks.
Each of the Doubt Brothers consumed an Owl SMILE, an artificial Zoan Devil Fruit whose granted powers have yet to be shown.
During the Raid on Onigashima, the Doubt Brothers stood among the Gifters who confronted Roronoa Zoro and Monkey D. Luffy on the Skull Dome's Live Floor.
Looking for more on Doubt Brothers? The One Piece Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Anime based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.
Rights holders
All rights belong to their respective owners.
Character and scene imagery on this site is original artwork by Daddy Jim Anime, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:
Official resources:
Daddy Jim Anime maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.