R-3PO was a 3PO unit protocol droid with distinctive red plating and a moody attitude. During the Galactic Civil War it served the Alliance to Restore the Republic in their fight against the Galactic Empire, and when the Alliance established Echo Base on the planet Hoth, R-3PO was tasked with keeping a lookout for spies within the base. The droid was present for the Battle of Hoth, which the Alliance lost, forcing them to evacuate Echo Base.
- Star Wars: Episode V The Empire Strikes Back (First appearance)
- Star Wars: Absolutely Everything You Need to Know (First identified as R-3PO)