Any Starfighter with R2-D2 on it can have an extra Pilot if that Pilot isn't an astromech Droid.
Starfighter Pilot. The Starfighter gets: * +10 speed. * +1 power. * At the start of the Space battle step, remove 1 damage counter from this unit.
Usage Notes
Text erratum on third effect granted to the starfighter.
Keywords
Pilot
[sub-type] Pilot: A layered, static ability written as "[sub-type] Pilot. The [sub-type] gets:… ." that means, "You may move this card onto or off of a non-Droid Space or Ground unit of the correct sub-type once during the build step. Ignore all other text on this card except its name, sub-type and health. The piloted unit can't have more than one Pilot." Treat all of a unit's Pilot abilities for a sub-type as a single Pilot ability for that sub-type. It grants abilities to that unit alone. See the "Pilots" section of the rules PDF for more info.