Vestal

Vestals are a humanoid alien race that are almost identical to Humans, except for the eyes.

Biology
Some known Vestals, like Mira Clay, are identical to Humans, except for eyes and hair color.

Demographics
Vestals have overpopulated their home planet. This has led them to colonize other planets. The whole planet is covered in cities. A Human named Klaus Von Hertzon has moved to Vestal to set up a real estate business.

Government
They have a Republic, ergo a president governs the Vestals. They used to be a Monarchy ruled by King Zenoheld.

Technology
Their technology is a few centuries ahead of Earth. A known Vestal named Professor Clay said that Vestal has a huge population, so many people are involved in advancing technology. They are a space-fairing species with advanced starships.