Harlock039s first mate on the Arcadia he is usually portrayed as comic relief in the series but when a battle against alien threats become imminent he will be at the captain039s side. He is also a brilliant mathematician and has a major interest in building plastic model kits of ships he was even seen building a scale model of the Arcadia in one episode. Yattaran is based on manga artist Kaoru Shintani best known for Area 88 who in his early career worked for Matsumoto building models for reference. Source: Wikipedia