Romar Adell was a male human hailing from the world of Serenno. At one time, Adell was associated with the Confederacy of Independent Systems, but he ultimately became disillusioned with Dooku, the Separatist Head of State and the current Count of Serenno, due to his exploitation of the Serennians during the Clone Wars.
After the Galactic Empire's bombardment of his planet, Adell, along with other Serennians, sought refuge in the upper forest region of Serenno, where he also constructed his domicile. He would later become an associate of the Bad Batch, a squad of dissident clones, who encountered Imperial forces on Serenno. Following his assistance in their escape from a squad of stormtroopers, Adell presented a kaleidoscope to Omega, the youngest member of the Batch, and ensured their secure departure from the planet.
The character Romar Adell made his debut in "Ruins of War," which is the second episode of the second season of Star Wars: The Bad Batch. The voice actor for the character is Héctor Elizondo.