The ancestor of Oola, who was a Twi'lek dancer and captive belonging to Jabba the Hutt, held the position of clan leader on Ryloth, the Twi'lek native planet.
Information regarding Oola's parentage appeared within a trading card found in the Star Wars: Card Trader mobile application from The Topps Company, which came out in 2015. Within the Star Wars Legends storyline, the male parent of Oola was initially referenced in the Galaxy Guide 5: Return of the Jedi sourcebook created for Star Wars: The Roleplaying Game by West End Games in 1990.