Madakko (マーダッコ Mādakko) is an assassin of Space Shogunate Jark Matter who was promoted to a Karo of Cepheus System (ケフェウス座系 Kefeusu-za-kei) as Mecha Madakko (メカマーダッコ Meka Mādakko) and one of the people who is responsible for killing Big Bear, the other being Ikargen. She is the first female villain in the series, the other being Vice Shogun Akyanba.