Rokakku has tanned skin, with prominent cheekbones and a black (light colored in the manga) goatee. He has a scar above his right eye.
Although everyone was scared of Morgan's wrath, he was willing to stand up against him when he ordered him to kill Rika, showing that he is brave enough to stand up for what he believes in. Also, in contrast to Morgan, he is not a heartless person as he refused to kill a little girl.
Abilities and Powers
As a Marine, he most likely had to go through training and so may have some combat skills.
Romance Dawn Arc
When Morgan was discovered that Rika was still alive after trespassing into the courtyard of the Marine base, he immediately ordered Rokkaku to go into town and kill her. Rokkaku refused to do so because she was just a little girl. Upon hearing this, Morgan exclaimed that his orders were absolute, but Rokkaku refused once again. Because of this "insubordination", he was slashed down the back by Morgan's axe-hand.
After the Timeskip
Anime and Manga Differences
The anime downplays the wound he receives from Morgan, framing it to seem like a bludgeon from the axe's blunt handle rather than an outright slash.
Translation and Dub Issues
His name is a katakana rendering of the Japanese for hexagon (六角 Rokkaku?), referencing the general shape of his face.
The original manga (and anime) does not clarify his fate during the Romance Dawn Arc, only confirming that he survived many years later. As a result, both the Viz manga and the Funimation-dubbed anime mistakenly assume—via Helmeppo—that he had been killed by Morgan.
(Curiously, this mistake is not present in Funimation's subtitled translation.)
- Prior to One Piece proper, Oda had used "Rokkaku" as the epithet of Romance Dawn (Version 2)'s main antagonist Spiel. The characters are totally dissimilar otherwise (as the term references Spiel's hairstyle rather than his face).
- For some unknown reason, his scar disappeared in his post timeskip reappearance.
- One Piece Manga and Anime — Vol. 1 Chapter 4 and Episode 2, Rokkaku makes his debut.
- Vivre Card - One Piece Visual Dictionary, Rokkaku's birthday is revealed.
- One Piece Blue: Grand Data File, his name is revealed.
- One Piece Manga — Vol. 63 Chapter 616, Rokkaku appears for the first time after the timeskip.
- One Piece Manga — Vol. 63 Chapter 616, Rokkaku appears without his scar.