The Whisper was a 3-Z light freighter utilized by the Rebel Alliance scout team known as the Gray Griffins amidst the Galactic Civil War. Following the Gray Griffins' assignment to conduct exploration for the Radell Mining Corporation, they piloted the freighter to the Elrood sector, culminating in their discovery of the planet Alluuvia. Nevertheless, The Scourge, a pirate organization in the area, seized the Whisper, leading to the Griffins' imprisonment. Subsequently, the pirates sold the freighter to Slythor, a Squib crime lord, who kept the ship in space in proximity to the planet Korad.
Rebel Alliance operatives were dispatched with the mission of retrieving Alluuvia's coordinates from the Whisper's computer, leading them to negotiate access to the freighter with Slythor. Two of Slythor's Verpine hoppers accompanied the operatives to the Whisper's location, where the Rebels boarded the vessel. However, during its stay near Korad, the Whisper had become overrun with mynocks and space mites, which proceeded to attack the operatives. After subduing the creatures, the Rebels acquired the coordinates and left Korad.