Astromech Droid, R5-D8 / R5-D4 - Truncated Cone Head, Blue Center Panel

R5-D4, also known as R5-D8, is a red and white astromech droid. Known for its brief encounter with Luke Skywalker in "A New Hope," it has a defective motivator which leads to R2-D2 being chosen instead by the Skywalkers.