Sergio Mousquelaire (セルジオ・マスキュラー,Sergio Mousquelaire?) - Military doctor belonging to the Edinburgh Navy, stationed on the snow cruiser Centurion. He used to be a pediatrician at a town hospital before the war. He’s a funny and kind person, but he can become scary when someone tries to escape treatment. His hobby is bodybuilding, boasting the top physical strength on the ship. He is voiced by Masaya Takatsuka in Japanese and Patrick Seitz in English.