I won't be satisfied until I hear your dying breath.
~ Hero of Tython

Important Note: In case it wasn't obvious, this article is about the Dark Side version of the Jedi Knight, not the more commonly seen Light Side version, who is nothing like his/her Dark Side counterpart.

The Hero of Tython was a ruthless and sadistic Jedi Knight during the Cold War between the Galactic Republic and Sith Empire. Unlike the rest of the Jedi Order, the Hero of Tython was cruel, violent, twisted and somewhat sociopathic. They also committed several murders and crimes wherever they traveled and treated their allies and friends with complete disrespect. Despite being a Jedi, the Hero of Tython displays a brutal fighting style with a lightsaber and usage of the Dark Side of the Force, particularly the Force Choke technique. They showed absolutely no mercy to others, and took great pleasure in hearing people beg before executing them. Even after their master Orgus Din was killed by Darth Angral, the Hero of Tython showed little remorse for his passing; declaring him to be a weak and old man. Caring only for themselves, the Hero of Tython stopped at nothing to complete their mission to kill Darth Angral and later the Emperor himself.