D4-R4B

D4-R4B was an R4 astromech droid in service to the Alliance to Restore the Republic leading up to the Galactic Civil War. It was affected with a programming glitch, making it afraid of flying, and was consequently assigned to the droid labor pool at the Alliance's Base One on Yavin 4. It was later present on the Tantive IV, the consular vessel of the Alderaanian Princess Leia Organa, during the Battle of Scarif and the ensuing skirmish over Tatooine, where it would be captured by the Galactic Empire.

Appearances

 * Star Wars: Episode IV A New Hope
 * Rogue One: A Star Wars Story