Erebus

Erebus is a profound character whose appearance and history reflect his destiny as the protector of the Underworld. Here are the key aspects of his personality and appearance:
Appearance
Erebus is presented as a tall, powerful robot whose design combines Old World technology with a rugged aesthetic:
Head and Face: He has a solid metal mechanical helmet with a fixed faceplate. In the very center is his recognizable, bright pink, glowing visor, which is his single, cyclopean eye.
Clothing: The robot wears dark blue armor, black pants, and chunky boots. One of the most striking details of his appearance is his fur jacket (or cloak), which gives him the appearance of a "sleeping relic" awakened from the distant past.
Personality and goals
Erebus is the embodiment of logic and the responsibility placed upon him by history:
Role: He runs the Robotic Settlement and believes his main responsibility is to "preserve" the Underworld.
Personality: Erebus is extremely calculating and cold-blooded. He prefers to rely on precise calculations rather than emotions, which is why human problems often seem secondary to him.
Attitude toward conflict: He deeply despises destructive conflicts, such as the standoff over Wildfire or the actions of the Rogues. His desire for peace stems from a desire to ensure stable coexistence, which, according to Clara, is his key directive.

Background and Experience: An ancient robot guardian of the Underworld, created to maintain peace underground after endless wars on the surface.