Ollie was the cherished ollopom belonging to Dok-Ondar, the Ithorian collector. This rodent resided in a compact tank containing water and pom petal plants within Dok-Ondar's Den of Antiquities, Ondar's shop of historical items situated on the planet Batuu in the Outer Rim. Hondo Ohnaka, the pirate, gifted Ollie to Ondar around the year 34 ABY after discovering it amidst unlabelled goods. Ollie, being an ollopom, possessed hazel eyes, green fur, and skin displaying a blend of yellow and pink hues adorned with purple spots.
Bina, the Amani female owner of the Creature Stall in Batuu's Black Spire Outpost, featured Ollie within her engaging book, Bina's Guide to the Creatures of Batuu. Furthermore, Eloc Throno, the historian, incorporated a reference and image of Ollie in his own publication, Traveler's Guide to Batuu, which he authored in 34 ABY.
Ollie's initial appearance was as a decorative element inside Dok-Ondar's Den of Antiquities, a retail establishment located within the themed area known as Star Wars: Galaxy's Edge. This themed land initially opened its doors on May 31, 2019, at Disneyland Park. The rodent was initially referenced, although without a specific name, within the D23 article titled "Creatures, Droids, and Aliens: Meet the Fantastical Figures of Star Wars: Galaxy's Edge," which was released on May 29, 2019.