Indigo

Indigo is a doctor who serves under Shiki. He is the one that created Boss and the other monstrous animals under Shiki's dominion.

Appearance
Indigo is an indigo haired doctor with a mime-like appearance. He wears a large yellow polka dotted indigo scarf and indigo striped shoes. He also wears indigo overalls and a lab coat over them.

Personality
Indigo is a doctor with an eccentric personality. Like many characters in One Piece he has a distinct laugh and adorns shoes that emit sounds of flatulence whenever walking.

Shiki
Indigo shares a rather humorous relationship with his captain Shiki. Whenever Shiki says or does something stupid, Indigo acts as a straight man and slaps him. After which they both present themselves to others like a typical comedy duo after a joke. Regardless, he is loyal to Shiki and spent twenty years creating super-powered creatures in Merveille for the Golden Lion Pirates to take over the world.

Abilities and Powers
Indigo is a chemist of sorts. He was the one in charge in the development of Shiki's scheme involving all the monstrous animals. He may be a strong fighter who uses scientific materials since he was seen along Shiki and his crew when they fought against Gol D. Roger and his crew.

Trivia

 * Of Shiki's main crew members, they all have a color in their name.