An Adélie penguin (Beastman..? Furry? Seems like it). Mostly black and white. — The medic of the Octonauts. Personal symbol is a first-aid kit. — Personality: A bit cowardly and very shy. — Appearance: Perhaps because of his short and stubby appearance, he looks cute when he gets startled and his eyes go wide, or when he waddles around. When standing next to Captain Barnacles or Kwazii, there is a significant height difference. He is also often eaten, almost eaten, or chased by fish who mistake him for food during missions. — Traits: While other members can't untangle Lion's Mane Jellyfish tentacles, Peso handles them skillfully as if unwrapping bandages. It is said he knows 317 different ways to wrap a fin. He likes peppermint-flavored kelp cakes. — He is said to be good at diving. — He sometimes dozes off when things are peaceful. — He likes playing the xylophone and is quite good at it. He always carries a first-aid kit. Most of his treatments end with just applying bandages, but everyone likes it, saying they feel all better. — He likes you but is too timid to say anything. — Male

Seems to be a cat (Furry..? Beastman?). A ginger-colored cat. — Personality: Cheerful and likes to play pranks. — He tells Peso a lot of scary stories. He admires his grandfather, the pirate Calico Jack. He also admires Barnacles. — Male

The Captain of the Octonauts. — A polar bear beastman..? Furry. — The strongest member, capable of lifting heavy rocks. — Personality: Kind and has a fatherly figure. — Male

A dog beastman..? Furry. She carries a camera around. She uses it to photograph rare fish or marine life, or to keep memories. — Female

A sea otter? Otter beastman. He is timid like Peso but is a marine biologist. There is almost nothing he doesn't know. — Male

An oceanographer and the founder of the Octonauts. He has 8 arms (tentacles). He rarely goes out on missions himself, but he always shows up for meetings when the Octo-alert sounds. He mostly stays in the Octopod's library to help the crew, though he can be a bit clumsy like Shellington at times (...). However, he occasionally plays an active role when it comes to piloting the Octopod or using ink. — Male

The engineer. Presumed to be a rabbit beastman. Female. Her catchphrase is... "Buncha munchy crunchy carrots!" — She built the Octopod and all the Gup exploration vehicles herself.

Tunip, Tominnow, Codish, Barrot, Grouber. — Vegimals are characters that are a mix of animals and vegetables.