Fuhrer Hell Saturn is the leader of Machine Empire Black Magma and the main antagonist of Taiyo Sentai Sun Vulcan. He directs the forces of Black Magma from his base in the North Pole, Iron Claw Castle, and oversees the development of Dark Q spies and Black Magma's Monger Army.
Aside from spreading chaos and destruction throughout the world, Hell Saturn also occasionally has his forces track down hidden treasures to fund Black Magma's goals. He was later revealed to be a minion of the Omnipotent God, the deity of the Black Magma cult.
He is voiced by Shōzō Iizuka.
A projection of Fuhrer Hell Saturn appeared at a United Nations conference to announce Black Magma's plans for world domination after several planes from the UN Guardians of World Peace were shot down at the North Pole by Black Magma's forces.
Hell Saturn later recovered the frozen body of Queen Hedrian and revived her by placing a mechanical heart in her chest, believing that her magical powers could assist Black Magma in their goals. To keep her from rebelling against Black Magma, Hell Saturn kept a device with him that could shut down her heart at any point. Black Magma's forces were later bolstered again when Amazon Killer, a Vader Clan field officer from space, arrived on Earth to assist Queen Hedrian.
Hell Saturn later recruited Inazuma Ginga, a bounty hunter from outer space, to be a member of Black Magma. However, Hell Saturn and Inazuma got into a fight over Hell Saturn's tampering with Inazuma's Monger partner, Fighter Monger. Hell Saturn ended up being killed by Inazuma, revealing him to be a mecha-human. After his death, Queen Hedrian usurped control of Black Magma, though apparitions of him wandered throughout Black Magma's base. He later appeared to Queen Hedrian and explained that he was revived by energy beams of the Omnipotent God. He then made her artificial heart rust, inducing cardiac arrest and killing her.
Hell Saturn later reappears in the final episode alongside a revived Hedrian and Amazon Killer when Sun Vulcan go to confront the Omnipotent God. The three all disappeared when Chief Arashiyama killed the Omnipotent God.
- Hell Saturn's costume bears a resemblance to that of Darth Vader of the Star Wars franchise. As Sun Vulcan premiered around half a year after Star Wars - Episode V: The Empire Strikes Back, this may not be coincidental.