Yuun Taa is a geneticist and cloner from Kamino. He participated in the creation of the Grand Army of the Republic during the Clone Wars, and was later contracted by the Empire for a classified project that was deemed only somewhat successful. By the time of the Battle of Yavin, he was part of the cloning projects spearheaded by the Empire during the course of the Civil War.
When the Battle of Endor was concluded, Yuun Taa saw his contract with the Empire terminated, and thus he left its service. Rather than returning to his own homeworld, Yuun Taa set out to establish his own cloning operation, and became only moderately successful. With few clients to take in his services, despite his complete disregard for ethical ramifications, he was on the verge of shutting down his operation.