Genzou
The sheriff and mayor of Cocoyashi Village (Coco Village in the 4kids version), which is Nami’s home town. He is like a father figure to Nami and Nojiko since they were kids and he knew their adoptive mother, Bellemere, quite well. He also kept the town together after Arlong took over the island, making sure everyone was safe and able to pay their tax.
Genzo wears a pinwheel on his hat because he used it to make Nami laugh when she was a baby (this pinwheel also inspired an attack for Luffy during their fight with Arlong). He played a role in rescuing Luffy after Arlong threw him into the ocean. All of Genzo’s scars are from his first encounter with Arlong when he tried to stop him from taking Nami, Arlong made Kuroobi cut every part of his body with a sword. He was also almost killed by Arlong for hoarding novelty swords, until Usopp saved him.