Gelios (ゲリュオス, Geryuosu) and John Owen (ジョン・オーエン, Jon Ōen) or John Ouen, are an ancient Mamodo team who confronted Zatch Bell and Kiyo Takamine and Tia and Megumi Ooumi, along with Alm. Their spells involve Armor. John Owen is a baseball player, which mind is brainwashed for Zofis. John's Japanese voice is provided by Keijin Okuda; English voice is provided for Kyle Hebert.