Jacius Kareel was a powerful Force-sensitive male Adien and Jedi Knight who fought in the Clone Wars, later going as far to assist in the formation of the New Republic. Jaran was the sole descendant of the Jedi Khaylee Kareel, who had lived nearly three thousand years before, and was the last of House Kareel's bloodline. As a boy, he was found by Jedi Master Kit Fisto on the run after leaving the planet Tyos prior to the destruction of his home. Upon being inducted into the Order, he was placed under the tutelage of the Chagrian Jedi Master Veru Darr. During the war he grew close to his peers, especially a female Jedi named Sheya Tisa, whom he had a secret relationship with.