Crocus

Crocus (クロッカス, Kurokkasu) is Laboon's caretaker and the overseer of the Lighthouse that guides ships coming down from Reverse Mountain into the Grand Line.

Abilities and Powers
As Laboon's caretaker, Crocus possesses advance medical knowledge to have made it possible to install "routes" inside the humongous whale's internals

History
Crocus received Laboon from the Rumbar Pirates, who did not want to take him with them on the Grand Line, fearing that he would be eaten by a sea monster. The Rumbar Pirates promised that after sailing all the way around the Grand Line, they would return to Laboon.

Translation and Dub Issues
Crocus was removed from the 4kids English dub version of the anime, along with the entire Laboon arc. To fill up the plot hole created by the 4kids dub about who explains to the Straw Hats how Log Poses and the Grand Line work since Crocus was taken out, the dub instead had Sanji do the explanations.

Trivia

 * Crocus is 71 years old, a Gemini, and his blood type is AB.
 * He has a running gag where he glares fixedly, apparently activating a series of dramatic jump-cuts, for no real reason.
 * He is based off the flower, Crocus, as seen with those petals around his head.
 * He may have had a past connection with Gold Roger (when Luffy's crew departed he said to himself "That man had a mysterious air about him. Don't you think so? Roger...)