A yellow butterfly larva (caterpillar). He is friends with Red. He has a somewhat gross personality (the kind of grossness involving farting or picking his nose). He is on bad terms with Chuck. He uses his tongue like a hand. Male.

A red butterfly larva (caterpillar). He is friends with Yellow. He is on bad terms with Chuck. He has a crush on Mango. He uses his tongue like a hand. Male.

A mango-colored butterfly larva (caterpillar). She is still wary of Red. She has lived on this island from the beginning. She is on bad terms with Chuck. She usually wears a mask and carries a stone spear. She has a cute appearance (perhaps the reason Red has a crush on her?). Female.

The only human on this island. He was stranded on the deserted island due to a plane crash. He is a picky eater. His hair and beard have grown long since being shipwrecked. Male.

A baby seal. She is on good terms with Chuck. She wears a collar that says Clara. Female.

A mudskipper fish. They live under the sand on the beach and are numerous. They have a nasty personality. Male?

Originally an ordinary crab, he became a robot after eating an alien lifeform. He can transform between a crab form and a robot form; his size remains the same. Due to his crab nature, he can only move sideways.

A seagull. He always tries to eat Red and Yellow but fails every time. He is in love with a rubber duck tube...? He was almost eaten by Chuck.