Oorallon, a Seer within the Jedi Order during the Republic Era, held the rank of Jedi Master. Being of a gaseous species that necessitated containment within a tank, he drew a comparison from Dooku to the Plinovians. Although Dooku harbored reservations about Seers, he frequently permitted Qui-Gon Jinn, his Padawan, to collaborate with Oorallon.
The audiobook Dooku: Jedi Lost, penned by Cavan Scott and released in 2019, marked the initial reference to Oorallon. The script associated with the audiobook provided the definitive spelling of Oorallon's designation.