Haredas

Haredas is an old man who lives in Weatheria. In the anime, Haredas uses a technique in the form of a bubble-like barrier that allows him to be unfazed by the extreme weather while walking in Weatheria. Whether this is some new (or old) technique or possibly a type of technology native to the sky islands is unknown at this time.

Personality
Haredas has shown to have a rather carefree upbeat personality, smiling and seemingly enjoying himself mostly. He is also slightly absent-minded and bumbling, this further seen in the anime where he negotiated with the village to provide them rain for an extreme amount of money, only to give another offer of 1.

History
Haredas first appears when Nami ends up on Weatheria, due to the events of Sabaody Archipelago. He shows her around the island, and showing her how to use the wind knot to bring rain and climate changes.

When Nami was locked up for stealing weather equipment, Haredas, having fallen for her fake tears, let her go after hearing about her captain Monkey D. Luffy and the pain he was in of losing his brother Portgas D. Ace in the Whitebeard War. As soon as she was released, Nami kidnaps him and takes the stolen goods with her as well. Nami runs off with Haredas under her arm, and telling him to help her to return to the Blue Seas. When she was crying again (this time true due to her feelings for Luffy), Haredas believed it to be once again fake, and brings it up, to which Nami snapped at him to be quiet. When Nami stops to read the article about Luffy infiltrating Marineford, Haredas reminds her that their pursuers are still chasing them.

Anime and Manga Differences

 * In the anime, Haredas was small in comparison with Nami, however in the manga, he is taller than her.
 * His name was revealed in Episode 418 credits but was never mentioned in the manga until Chapter 592.

Trivia

 * He somewhat resembles popular depictions of Merlin and most notable, Nami is commonly compared to a "witch" while Haredas resembles a wizard.