Theodore is an ally who serves as the mentor of the Myth Rangers. He owns a headquarters disguised as a camp in the middle of an enchantment forest. He was the one who found the Myth Gems & gave them to the Myth Rangers after he told them that they were chosen to defend the Earth from the evil Lord Geric. Later, Theodore is revealed to be Aetas, the Earth Titan of Time, who was sent to Earth by the other Earth Titans to find the Myth Gems & young warriors to use them.