R1-G4 was an R1-series astromech droid produced by Industrial Automaton at some point prior to the Battle of Yavin. It was one of the droids rounded up by Jawas when Imperial stormtroopers arrived on Tatooine looking for the escaped Rebel droids R2-D2 and C-3PO.
- Star Wars: Episode IV A New Hope (First appearance)
- Star Wars: A New Hope junior novelization
- "The Red One"—From a Certain Point of View