Nostradamus Zaarin

Nostradamus Zaarin was a soldier and officer of the Galactic Empire and later the New Republic, becoming a defector. He was also notable as the soon of Grand Admiral Demetrius Zaarin, who attempted to overthrow Palpatine. Joining the Imperial Navy the year that the Death Star was destroyed, the younger Zaarin took advantage of the power vacuum left by the station's destruction and the deaths of so many officers. This allowed him to rise to the rank of lieutenant in 2 ABY. During his career in the Empire, Zaarin served mainly aboard Star Destroyers and fought at Hoth, as well as several other battles. In 3 ABY, when his father began an insurgency against the Imperial government of the Emperor, he refused to join him, staying loyal to the Empire.

As a test of his loyalty, Darth Vader assigned Nostradamus to serve aboard one of the ships in the Imperial fleet that was tasked with hunting down the traitor. He passed the test, but was still was looked at suspiciously by other Imperial officers. By the time of the Battle of Endor, Nostradamus was close to being promoted to captain, and was stationed at Coruscant.