King Ghidorah (MonsterVerse)

King Ghidorah is one of the two main antagonists (the other being Jonah Alan) of MonsterVerse's Godzilla: King of the Monsters, the third movie of the franchise and a sequel to the 2014 Godzilla film. He is a ancient giant extraterrestrial three-headed kaiju dragon who is the darkest and most evil titan of them all. He is Godzilla's arch-nemesis.

Personality
King Ghidorah is vicious, bloodthristy and malevolent in nature, which is supported by the skulls depicted surrounding him in the cave painting and a footnote in Vivienne Graham's notes that refers to him as "the devil". His sadistic and ruthless nature is elaborated when he willingly obliterates soldiers with his gravity beams instead of ignoring them. His middle head also appears to have a fairly large degree of intelligence and sentience while his other two heads act more akin to trained attack dogs. Ghidorah lacks empathy and is pure evil to the core as he enjoys causing destruction and doing all kinds of other heinous things he does.

Ghidorah is depicted fighting with Godzilla in a cave painting, suggesting that the two have a history (he is even referred to as "a rival alpha to Godzilla").