This article, Mercury Jasper, is property of KingD3.

Mercury Jasper
Japanese Name: マーキュリー・ジャスパー
Romanized Name: Maakyurii Jyasupaa
English Name: Jasper
First Appearance: TBA
Affiliations: One-Eyed Pirates
Occupations: First Mate
Japanese VA: Nobuhiko Okamoto
Age: 28
Birthday: TBA
Height: TBA
Devil Fruit
Japanese Name: Hebi Hebi no Mi, Model: Ouroboros
English Name: Snake-Snake Fruit, Model: Ouroboros
Meaning: Snake
Type: Mythical Zoan

Mercury Jasper is a snakeneck and the first mate of the One-Eyed Pirates.


Jasper has a long neck signature of his race. He has spiky purple hair, and wears a scarf resembling a snake that completely obscures his neck because of his insecurities over it.


Jasper is rather reserved, rarely speaking unless spoken to. He is somewhat embarrassed about his long neck, feeling the need to cover it up whenever he can. He also drinks a lot.

Abilities and Powers

Physical Abilities

Devil Fruit

Jasper ate the Mythical Zoan-type Hebi Hebi no Mi, Model: Ouroboros.


Jasper is proficient in Busoshoku and Kenbunshoku Haki.


  • Jasper's name in Japanese contains jya (ジャ), another reading of the kanji for snake, 蛇.
    • Another reading of jya in the context of the aforementioned kanji is "heavy drinker", one aspect of Jasper's character.
  • Mercury is an important element in alchemy, which the ouroboros sometimes represents.