King Ghidorah also known as "The One Who Is Many", Monster Zero, or simply Ghidorah was a three-headed extraterrestrial dragon that appears as the main antagonist in Godzilla: King of the Monsters. He was a monster from outer space who sought to terraform the Earth and Godzilla's most formidable archenemy. He was killed and defeated once and for all by Godzilla during their epic showdown in Boston.
In 2016, when Monarch an Extraordinary Superspecies Sealed Beneath the Antarctic Ice Sheet, Dr. Vivienne Graham led an effort to build a Covert Containment and Research Facility around the Dormant Creature. Her classified field notes contained the mysterious footnote: "The devil has three heads."
Ghidorah is first seen frozen in Antarctic ice, with the designation 'Monster Zero'. Eco-terrorist organization leader Alan Jonah and rogue Monarch agent Dr. Emma Russell preparing to free him with explosives and awaken him with the ORCA.
Upon awakening, Ghidorah slaughters the human forces on the ground, before turning his attention to a grounded Osprey aircraft. Shortly after, Godzilla emerges from the ice and the two Titans engage in battle, decimating the Monarch outpost. Ghidorah then eats Graham alive and gains the upper hand, but escapes into the sky before Godzilla has the chance to retaliate.
Ghidorah later reappears in a massive storm near Mexico, shortly after Rodan, is freed from his volcanic nest. Monarch attempts to goad the two monsters into fighting each other, with Ghidorah easily defeating Rodan by sending him falling into the ocean. He proceeds to attack the Monarch crew, but Godzilla emerges from the sea to fight him off. Godzilla tears off Ghidorah's left head. Desperate and left with no options, the military is forced to detonate the Oxygen Destroyer missile, seemingly killing both Titans. However, due to being an extraterrestrial, Ghidorah is unaffected by the effects of the missile, which was specifically designed to eliminate all lifeforms in the area by removing all surrounding oxygen.
Ghidorah flies to Rodan's volcano, where he regenerates his missing head. He then calls out to the other Titans around the world, Rodan included, who all acknowledge him as their new Alpha. Ghidorah instructs the Titans to behave hyper-aggressively, attacking major cities across the world and forms a roost in Washington, D.C, with Rodan acting as his vanguard. Ilene Chen deduces that Ghidorah is actually an extraterrestrial, who seeks to destroy all life on Earth and terraform the planet in his own image. Realizing they need Godzilla more than ever, Dr. Serizawa sacrifices himself to detonate a bomb to bring Godzilla back to full strength.
Ghidorah is lured to Boston by Madison Russell, who broadcasts the ORCA's signal from Fenway Park. Godzilla appears to challenge his rival once more, with Mothra joining by his side. However, Ghidorah calls upon Rodan to distract Mothra while he takes on Godzilla himself. The battle is at first a stalemate, both Titans being evenly matched. Ghidorah manages to absorb massive amounts of electrical energy by biting down on a nearby transformer and proceeds to incapacitate Godzilla. He carries Godzilla into the sky and drops him down thousands of feet, mortally wounding him. After slamming into the ground, Godzilla lies defenseless. Mothra, who is grievously injured from her fight with Rodan, attempts to defend him but is killed by Ghidorah's gravity beams. As she dies, however, she releases a cloud of energy, which Godzilla absorbs. Godzilla begins to glow fiery orange.
Seemingly realizing the threat posed by this energy, Ghidorah grapples Godzilla and begins draining it through his bite. However, a repentant Emma Russell uses the ORCA to distract Ghidorah, who then chases her into the city and mortally injures her with his gravity beams, destroying the ORCA.
The few moments were enough for Godzilla to recover, who then enters the scene supercharged and glowing a burning red. Ghidorah manages to shield himself against Godzilla's first thermonuclear pulse, which incinerates his wings in the process. Panicking, Ghidorah tries to stop Godzilla with his gravity beams, which fails as Godzilla incinerates Ghidorah's two side heads with a second pulse.
The remaining middle head struggles vainly, but Godzilla steps on the fallen Ghidorah's chest and releases a final thermonuclear pulse that obliterates Ghidorah's body. After the storm ceased, Godzilla rises from the rubble with Ghidorah's middle head dangling from his mouth, still frantically struggling. Godzilla fires his atomic breath through Ghidorah's neck, incinerating it, seemingly leaving behind no remains and presumably killing him for good.
It is revealed that Ghidorah's left head that was severed by Godzilla during their battle in Mexico has been recovered by fishermen from the ocean. Alan Jonah, seeing a potential use for it, purchases it from a trader.
Behind the Scenes
Ghidorah was portrayed in Godzilla: King of the Monsters.