Sucellus

Sucellus is the largest terrestrial planet in the Solar System. He protects Earth from any deadly objects, Nibiru, and/or blasts

Bio
Sucellus is the 1st Original Character planet from the Sun. He joined the solar system about 4.543 billion years in, and became habitable due to his position when joining, situated between Earth, and her younger sister, Theia. He was created from the same elements Earth has, as a device to purge any killers (excluding himself obviously).

He's basically a god more powerful than Norville Rogers's Movie persona known as Shaggy, and NonsenseHumor's internet persona.

Personality
Sucellus is a kind Planet, but if someone tries to kill Earth, he'll get pissed off and attack the killer.

He also gets mad when someone calls him SUSellus

Trivia
He is dominant to Earth