4OV9 was the designation assigned to a TIE/IN interceptor of the Imperial Navy.

Maarek Stele was piloting 4OV9 on a test run near Farboon after completing repairs when Admiral Mordon's shuttle was attacked by Rebel Alliance starfighters. Stele was able to stall two Y-wings and two X-wings long enough for Imperial reinforcements to arrive. His efforts earned him the opportunity to receive pilot training, setting him on course to become one of the Empire's most skilled warriors.