Ancient King

Ancient King is the king of the Terror Lizard Clan.

Appearance
The Ancient King is a large humanoid creature that has various reptilian and animalistic features, such as scales and claws.

Personality
The Ancient King is a ferocious and violent being who wishes to take the surface of the Earth for his race, much like the majority of the "kings".

Alien Conquerors Arc
He awakens after 300,000,000 years of slumber, which was used to wait for the other kings to be taken out. He is attacked by military forces, but the missiles are proven ineffective against the Terror Lizard's skin. The Hero Association deploy Tatsumaki to take care of the threat.

Trivia

 * His character design is based off of Godzilla