Y'ar'kor T'ri'ok was a Whiphid from an unknown homeworld. He was granted near-immortality by Darth Eskatos, and served him for hundreds of years until he 'liberated' himself. After many years living on a remote planet, he was found by Jur'ak D'aghar and helped greatly in many different conflicts. Finally meeting his end in the White Knight Crisis, he lived on in a book he wrote, The Life of an Immortal, detailing many of his fights and thoughts on certain matters.