Karii was a male Jedi Padawan under the tutelage of Jedi Master Dajjun. During the Clone Wars, he and his master, along with several other Jedi and the droid 4-B4, were dispatched by the Jedi High Council on a mission to recover a data droid belonging to the Sheyasti Trade Syndicate that would prove that the Syndicate was smuggling supplies to the Confederacy of Independent Systems. They acquired it in the caves of Kailion but were forced to fight a number of creatures in the cave while making their escape.