Neptina is a mermaid from the TV-show Mako: Island of Secrets. She is portrayed by Angourie Rice. BiographyEdit Neptina' is a young mermaid who followed Ondina back to Mako Island. Her friends call her Neppy. GalleryEdit Add a photo to this galleryLinksEdit Neptina's Page on H2O Universe wiki Retrieved from "https://mermaid.fandom.com/wiki/Neptina?oldid=14866" Categories: Merpeople Live Action Merpeople Characters Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.