- R4-M9 (Star Tours)
- R4-P17, nicknamed R4, or Arfour, was the astromech droid attached to Obi-Wan Kenobi's Delta-7 Aethersprite-class starfighter and was often on board his Delta-7B Aethersprite-class starfighter and Eta-2 Actis-class light interceptor prior to and during the Clone Wars.
- R4-P22 was the designation of the astromech droid attached to Anakin Skywalker's modified Delta-7 Aethersprite-class starfighter, Azure Angel, during the Clone Wars.
- Unidentified blue R4 unit (Star Tours)
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