Hacklin was a male admiral of the Imperial Navy and a loyal ally of Darth Angral, a Sith Lord of the resurgent Sith Empire during the Cold War with the Galactic Republic. After the Admiral encountered the Jedi Padawan Kira Carsen when the woman was captured by Angral's forces, Hacklin was impersonated by the Child of the Emperor Valis in order to lure Carsen and her Master into a trap on an abandoned mining facility.