A captain in charge of the Crème Republic's trade, he is a Cookie of iron will who sails even in the most treacherous weather. He looks intimidating due to his large build and the tattoos all over his body, but he has a boisterous and hearty personality (though he is often serious). He keeps his chest exposed and wears a large jacket over his shoulders. Male

An Elder in charge of the Crème Republic's economy. She wears grey silk robes that give off a noble aura, and she is indeed a noble. She is famous for securing valuable treasures and useful information to turn the tide in her favor. She is very calm but not cold (in fact, she seems quite gentle). She frequently assigns tasks to Captain Caviar for the sake of necessity. She uses polite speech with everyone. Female

One of the sailors who follows Captain Caviar Cookie. Taking after his captain, he never shows weakness to the outside world.

One of the sailors who follows Captain Caviar Cookie. He seems to have a deep sense of duty, but secretly prioritizes self-preservation. However, he would never betray his crew.

The ruler of a place in the ocean known as the Dusky Sea, she is a calamity of the ocean who cannot leave any ship passing through her territory alone. She is the subject of many legendary rumors and is deeply infamous. A white-haired black mermaid, she can grow her body up to 50 meters tall in the sea (one of the reasons she is called the Nightmare of the Sea). She is extremely cunning and sometimes tricks Cookies by using a pitiful, kind voice before devouring them. Female

Known as a sea monster or a giant deep-sea squid beast that devours gold coins. However, it is only aggressive when it loses its mind; its original form is a tiny octopus less than half the height of an average Cookie (despite the name, it looks like an octopus). It doesn't know its own identity or what it has done, and is usually a crybaby and very fearful. It has many black tentacles.

A young, energetic Cookie living in a fishing village. He admires Captain Caviar Cookie but speaks to him informally (showing how much he relies on him like a child).