- Series 1: Octonauts

| Character | Role | Trait-based function | Educational anchor | |-----------|------|----------------------|--------------------| | Captain Barnacles (polar bear) | Leader | Courage + empathy | Arctic adaptation | | Kwazii (cat) | Lieutenant | Risk-taking / impulsivity | Pirate mythology + agility | | Peso (penguin) | Medic | Fearfulness overcome by duty | Avian physiology / triage | | Shellington (sea otter) | Biologist | Information-gathering | Taxonomy / observation | | Dashi (dog) | Operator | Systems monitoring | Tech literacy | | Tweak (rabbit) | Engineer | Vehicle modification | Mechanical problem-solving | | Professor Inkling (octopus) | Founder | Lore / archival knowledge | Marine history / cephalopods |