Vegapunk

Dr. Vegapunk is the leading scientist in the employment of the Marines. His work includes discovering the secrets and uses of seastone, the secrets of how Devil Fruit powers work, and various other scientific achievements that are said to be at least 500 years ahead of current technology. He hails from the technologically advanced Karakuri Island. Despite Vegapunk's achievements, he has yet to make a personal appearance in the current storyline.

Appearance
He has yet to make an appearance, but a G-5 Marine states that he is an old geezer, suggesting he is somewhat elderly.

Personality
In his youth, he was a generous person who cared very much for the inhabitants of his island, willing to help them with his inventions. He is considered the island's pride and joy, and the residents are still hoping for his return. He also respects the wishes of his colleagues, as he agreed to program Kuma with a command the Shichibukai himself requested, as part of his final Pacifista modifications.

Unlike his former fellow scientist Caesar Clown, Vegapunk was far more moral about what he would do in pursuit of achievements. He refused to involve children in the giantification process despite repeated failures as well as the creation or release of the poison gas weapon for fear of it harming innocent people.

Abilities and Powers
Vegapunk is a knowledgeable scientist whose scientific expertise is said to be at least 500 years ahead of his contemporaries. It seems that even in his youth the scientist was a genius, but lacked the skills, funds and material to develop his inventions, although that did not stop him from creating the ideas for Pacifista cyborg, including their laser weapons back then. This is proven by the fact that Franky was able to recreate the technologies with the plans Vegapunk left behind on his home island. Regardless, the creations and blueprints that he has left behind are considered priceless, and any damage inflicted to them is considered a crime.

Through his research, he discovered ways of allowing Marine ships to pass through the Calm Belts without fear of Sea King attacking by covering the bottom of the ships with Kairoseki. He also discovered exactly how Devil Fruit powers are transferred over to a user, and was the scientist behind the method of adding Devil Fruit powers to inanimate objects, such as swords or guns.

He is the one who modified Bartholomew Kuma into a cyborg, and has produced many Pacifista replicas of him, granting them some of the abilities. These replicas bleed actual blood.