A heroic figure and strategic thinker, Barnacles is the proud and dependable Captain of the Octonauts. A true team leader, his decisive actions inspire the participation of the entire crew - each contributing their unique individual abilities. He's an expert with maps and charts, tools he uses to serve his true passion - the exploration of uncharted territories and the discovery of creatures no one has ever seen before. When a chase requiring complex navigation ensues, you can be sure that Barnacles will be at the helm. In addition to his powerful leadership, he is physically the strongest member of the Octonauts.