This is about the anime characters. For the monster itself, see Rocky Suezo.
A group of Rockies serve as Captain Horn's crew aboard The Jolly Roger in the anime series. They seem to trust him implicitly.
Season 1[]
They're first seen on episode 15 getting to coming to dock in the port of Polo with Captain Horn on The Jolly Roger, looking for treasure after one of them heard rumours of that town having lots of it. After they find that it's completely deserted and lacking any kind of treasure, their focus shifts to the Searchers who confront them after getting caught in one of their nets from their special red cannonball.
They don't seem to do anything on their own or against their captain's will, as they're always seen doing things that Horn told them to. Most of the time, they can be seen following their captain around, obeying his orders, manning the ship and doing different tasks for the ship's maintenance. They're loyal to Captain Horn and seem to enjoy sailing together, as they're always smiling and never once complain about it.