Po Sai was a male Kaminoan who served as the Senator of Kamino in the Imperial Senate. He replaced Halle Burtoni after the execution of the members of the Delegation of 2000 was ordered. He had two force-sensitive aides named Tanila Sai and Vevila Su. After the fall of the Galactic Empire, Sai was forced to live on Nal Hutta and worked for Arok Desilijic Tiure as Arok's financial adviser. He was killed in a skirmish between two drunk bounty hunters.