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Black Satan, also known as Black Saturn, is a Kaiju that appeared in Fireman, coming to attack Earth with Blacker.



Black Satan was the Emperor of a planet known as the Dark Planet. After having destroyed many stars, he set his sights upon Earth. He possessed the dead monster Blacker, and manipulated the corpse of a recently deceased man. He used Blacker to rampage several times while the man attempted to destroy Earth's defense team, SAF from the inside. The man's loved ones took notice of him, and reported him to SAF. SAF knew that something was afoot and killed the manipulated dead man. Black Satan then used Blacker in a last attempt to destroy the team until Fireman showed up. He fought and defeated the monster. The Emperor left it's destroyed host and fought the hero himself, but was easily defeated as well, finally ending his reign of terror over the cosmos.


  • Black Satan shares his name with an organization from Kamen Rider Stronger and a Terrible-Monster from Ultraman Ace.


  • Length: 12 m
  • Weight: 2,000 t
  • Origin: Dark Planet
Powers and Weapons
  • Corpse Manipulation: Black Satan can manipulate or control the corpse of the deceased.


Fireman Kaiju
Dorigorus | Dorigon | Alien Meteor | Stegorus | Jurasaurus | Planet Gomerus | Spacer | Kinokurages | Kumagorus | Rodoguros | Nerogiras | Stegorus II | Gudon | Alien Baranda | Baranda V | Scoradon | Tyrasaurus | Alien Barog | Alien Tran | Dorango | Tyrannodon | Lanosaurus | Tyrasaurus II | Alien Velder | Alien Atla | Long Neck | Alien Sulpher | King Zaura | MukuMuku | Makunosaurus | Alien Gagango | Gagango | Double God | Destrosaurus | Alien Prima | Alien Green | Green Giller | Harmonigan | Alien Virenus | Gadorasaurus | Blacker | Black Satan | Alien Emusa | Bemutan | Devilsaurus | Bemusa King | Spegz | Spegz Jr. | Dark Mander | Object X