Breetai
Breetai is second in command of all Zentradi forces, after Dolza himself. He was one of the original creations of the Robotech Masters, and has lived for over 500,000 years. Breetai has shown himself time and time again as a true military genius, securing himself his well-established position.
In the first saga, Macross, Dolza is ordered by the Robotech Masters to find the SDF-1, because they are running out of Protoculture, a form of energy. Breetai is chosen because of his military skill and intellect for this difficult mission, as Dolza knows that finding the ship is like finding a needle in the galatic haystack. Eventually, Breetai and his fleet of about 100,000 ships find the SDF-1 on Earth, which marks the beginning of the Macross saga.
On Earth, Breetai finds the ship completely remodeled and is confounded by the actions of the Micronians. Their raid consisting of two AMD warships bewilders him, as he believes that the Micronians are not even able to use their own weapons. Breetai then orders a scout team down and the destruction of the city surrounding the fortress. These actions cause SDF-1's captain, Captain Henry J. Gloval, to order a space-fold, which takes his ship and Macross island around Pluto. Breetai follows, and as the SDF-1 tries to work its way back to Earth, he launches wave after wave to harass the ship, but not destroy it, out of fear of destroying the Protoculture Generator.
Eventually, Breetai and his men become contaminated with Micronian culture, and therefore are marked for destruction by Dolza as Dolza fears the contamination's spread. In the final battle for Earth between Dolza's fleet of four million warships, Breetai chooses to join the SDF-1 and Azonia instead of face destruction. His armada of about one million ships manages to help wipe out Dolza's fleet.
At the end of the Macross Saga, Breetai and a select team of Micronians including Rick Hunter, Lisa Hayes, Claudia Grant, and the Sterlings capture a Zentradi war factory, which they eventually use to build the SDF-3 Pioneer to search for the Robotech Masters' homeworld. Breetai joins the SDF-3 on their quest.
During the Sentinels novels, Breetai is placed in charge of mining operations on the world of Fantoma, where he recalled the suppressed memories of his past life before the Zentradi race was made into soldiers for the Robotech Masters. Eventually he commands the remaining Zentradi in a battle against the Invid on the world of Optera, where he and Invid Regent die in combat together.