Ghianna Hayde, a Dathomiri Witch of the Human race and female gender, resided on Dathomir during the Galactic Civil War era. During an incident at the Imperial Research and Prison Facility located there, she was present. She contracted the Blackwing virus, resulting in her transformation into an undead being. Ultimately, her animated body was eliminated by a spacer within the Quarantine Zone.
Ghianna Hayde functioned as a non-player character within the video game Star Wars Galaxies from 2003, a massively multiplayer online roleplaying game. This game was created by Sony Online Entertainment and distributed by LucasArts before it shut down on December 15, 2011. The character of Ghianna Hayde was incorporated into the game via "Game Update 14," which launched on October 12, 2009. She was classified as one of the Undead boss enemies located in the Quarantine Zone, whom players were required to defeat to fulfill a specific collection.