The Emperor of Darkness is the de facto leader of the Mycenae Empire, often leading from behind the scenes and rarely taking action himself. Because of this, he often acts through the Great General of Darkness.
- Emperor of Darkness (TV): The original character from the anime and TV Magazine manga.
- Emperor of Darkness (Ōta): A similar iteration to the above with an expanded origin and determined fate.
- Emperor of Darkness (Angels): A leading but ultimately back seated villain in the Mu Arc.
- Emperor of Darkness (Shin): Originally the Mechanical God Hades, after the destruction of his physical body, he sunk the island of Bardos to establish his empire.
- Mycenae-tan: The child CEO of Mycenae Empire Inc. who worked in disguise as Great General of Darkness-ko.
- Dr. Hell (ZERO): Serves as the primary antagonist of an arc in Shin Mazinger ZERO vs. Great General of Darkness after changing his appearance.
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