Heppoko

Heppoko (ヘッポコ), Peppoko (ペッポコ), and Poppoko (ポッポコ) are the three members of the Alvida Pirates who, along with Coby, found Luffy in the barrel he had drifted to their hideout in. They intimidated Coby due to his low status as a Cabin Boy, and tried to attack Luffy, but were defeated. After that, they reported to Alvida.

Manga and Anime Differences
Although the three appeared in the anime, at least one of them appeared in a different scene to the others, instead another miscellaneous crew member replaced him when Luffy's barrel was opened. In the anime Poppoko later reappears as a member of Galley's crew.