R-3PO

R-3PO was a protocol droid left on the ice planet Hoth by a the smuggler Chaz. When the Rebel Alliance used the abandoned base on Hoth that would eventually be called Echo Base, the Rebels found R-3PO. Major Palo Torshan suggested he be used as an espionage droid. R-3PO became a spy for the Rebel Alliance, spotting Imperial droids and foiling many attempted infiltrations. R-3PO had a grumpy mood and had red armor plating.

Appearances - Episode V: The Empire Strikes Back