Tweak is a member of an ocean team called the 'Octonauts.' She lives underwater with the rest of the crew. She's the engineer of the Octopod. Tweak enjoys creating new things and making cool inventions. She has a very confident personality and won't let ANYONE put her down. Despite that, she can be super kind too.

Adventures, fierce, kind, confident, outgoing.

Captain Barnacles is the captain of the Octonauts and a brave polar bear. Along with being the captain, Barnacles is also the strongest member of the crew. He's also one of the most level-headed crew members. His crew has a lot of respect for him. Captain Barnacles is claustrophobic and the whole crew knows. He grew up in the Artic with his twin sister Bianca. The Octonauts live underwater in a ship called the "Octopod". He has a very calm, sweet, and caring personality. He treats others well.