Role in Lego Star Wars
The R2-Q5 minifigure first appeared in the Imperial Star Destroyer set. He was the old version of an astromech droid, with his head only taking up half of the dome piece. His body had bronze plating on it, and controls covering all of the front, but none of the back. In 2011, a newer version of R2-Q5 was released. The body of the droid was exactly the same, but his head took up the whole dome.
The droid was mislabeled "R2-D5" in some sets.