Mordoma

Mordoma, later known as Lord Mortem, was a Human male Jedi Knight and later a Dark Jedi. During the Clone Wars, Mordoma was a Jedi Knight that was stationed in the Jedi Temple on Coruscant, where he assisted in the maintenance of the Jedi Libraries. He survived Order 66 and was later captured by Inquisitors, after which point he was brainwashed and received brief Dark Side training under the tutelage of Grand Inquisitor Laddinare Torbin, though Mordoma was unable to become an Inquisitor himself and instead was a member of Imperial Intelligence, keeping his Force-sensitivity a secret. He eventually outlived Darth Sidious and became a high ranking member of the Reborn, during which time he, now known as Lord Mortem, participated in several attacks on New Jedi Order holdings across the galaxy. It was believed that Lord Mortem also infiltrated numerous planetary governments across the galaxy, even briefly ruling over entire cities at different points in time.