King Ghidorah (MonsterVerse)

"The Devil has three heads."

- Dr. Vivienne Graham's field notes.

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, as he often is in the Godzilla franchise, a malicious creature who frequently commits sadistic acts. However, this adaptation might be even worse than the previous ones, as Ghidorah's goals are more fleshed out here and are purely egotistical, wanting to destroy humanity so that the Earth can adapt better to himself, so that he can have an easier time living there. That said, Ghidorah isn't shown to be as openly sadistic as previous incarnations as most of his singular human victims are people who got in his way, rather than complete innocents.

Ghidorah, despite being revealed to be an alien, is very intelligent and aware of the consequences his actions cause. He is surprisingly capable of manipulation, managing to get multiple titans to help him with his goals in destroying big parts of humanity to adapt the environment to him. Ghidorah and Godzilla have been archenemies for an unspecified amount of time, but most likely they've been enemies for a very long time.

Ghidorah's heads each have different personalities. The middle one is rather obviously the leader of the other heads and the colder, more focused of the three. The head on the right is more focused on battle and not as calm as the others. The head on the left is the calmest of the three and also the most harmless, being very unfocused on battle and preferring to analyze what is happening, leading into the middle head sometimes being disappointed in the left head.

Trivia

 * This is the largest live-action incarnation of King Ghidorah and second largest Kaiju in the entire franchise (next to his anime counterpart).