Plasmajack was a male Twi'lek (according to legends) who operated as a treasure seeker and collaborated with Vette, Taunt, and Flash during the galactic Cold War. This conflict occurred between the Galactic Republic and the reformed Sith Empire.
The group consisting of Taunt, Vette, Plasmajack, and Flash came together to form a criminal group. Their most significant undertaking involved Cada Bliss, a wealthy Duros with an obsession for Twi'lek culture. The gang managed to deprive Bliss of nearly all his valuables, but Bliss retaliated fiercely. He hired mercenaries to pursue them, resulting in Vette's capture and subsequent sale into slavery. Plasmajack and his companions located Bliss, seeking retribution. By the time Vette was transferred to a Sith apprentice serving Darth Baras, Bliss had obtained a Twi'lek artifact known as the Star of Kala'unn. Motivated by her desire to reclaim the artifact, Vette persuaded the Sith to confront Cada Bliss at the Nar Shaddaa spaceport, where she successfully retrieved it. Later, Vette arranged a reunion with Plasmajack and the others at the spaceport, and the group enjoyed their time together before Vette entrusted the Star of Kala'unn to them. Impressed by Vette's accomplishments in the name of Twi'lek pride, the gang extended an invitation for her to rejoin them, but Vette chose to remain with her new Sith master.
Plasmajack was initially mentioned in the biography section of The Holonet, an online database of information provided by the official website for the video game, Star Wars: The Old Republic. Plasmajack was identified as an associate of Vette within her Holonet entry.