Galen's investigation soon proved fruitful, as his agents were able to identify one of the thieves from a security recording— a Rodian named Vistis Garn. Galen then went straight to Suthra, who was speaking with the Jedi MastersBela Kiwiiks and Orgus Din, Orgus' former Padawan, Kiwiiks' current PadawanKira Carsen, and DoctorEli Tarnis, the creator of the Planet Prison. Learning that Galen had a lead, Din ordered his former Padawan—now a Jedi Knight—to work directly with Galen, while the Jedi Masters and Suthra went to speak with the Supreme ChancellorJanarus. Kiwiiks also suggested that Carsen remain behind, as her security expertise could prove useful. Galen then explained his lead to the two young Jedi and Doctor Tarnis: Garn, who was known to work with the criminal Migrant Merchants' Guild, had recently been spotted raiding a military warehouse for high-grade munitions and weapons.
The Knight and the astromech droidT7-O1 headed to the Guild-controlled Old Galactic Market to recover the weapons and design files, while Galen remained at the Senate Tower and worked with Carsen to distract the criminals with Coruscant's security network. However, while the Knight and T7 were successfully recovering the stolen files and weapons, Galen and Carsen encountered a security breach. Somehow, members of the Black Sun criminal syndicate infiltrated the Senate Tower's security and kidnapped Doctor Tarnis right under the SIS' noses. When the Knight contacted Galen to report success, the agent brusquely ordered the Jedi back to the Senate Tower to aid in the search for Tarnis. Galen was disturbed to learn that Garn had been in fact hired by Black Sun to steal the files in the first place, and handed the recovered files off to his subordinate Krand for decryption
Just as Galen was explaining the situation to the Knight, he received a holocall from Carsen, who had pursued the kidnappers to the nearby spaceport with CSF forces. She and the security team had pinned down the kidnappers in Docking Bay 84, but they were unable to make any more progress. Galen ordered the Knight to go aid Carsen, and together the two Jedi were able to defeat the Black Sun members and discover that Tarnis had been taken to Black Sun Territory.
Tracking the Black Sun operatives who had supposedly kidnapped Doctor Tarnis,[4] the Jedi Knight discovered that Tarnis was in fact a Sith Lord and the son of Darth Angral. With this revelation all of the Republic's superweapon projects were in danger.[5] Galen left Coruscant shortly after that to secure the Power Guard Enhancement System on Nar Shaddaa.[3]
This section of the article assumes that the player chooses only "light side" options in the course of the game. Alternate stories are noted in the "Behind the scenes" section. Note: The events in this section may or may not be confirmed as canon.
Galen became a Power Guard for the rest of his life
As soon as he settled down on Nar Shaddaa and began his work, Galen was captured by the Sith Lord Sadic. Sadic then turned Galen into a power guard himself and forced Galen to obey his commands by punishing him with extreme pain if he refused. In a final act of defiance, Galen turned on Sadic and the other Power Guards. However, they were too powerful and Galen was severely wounded.[2] Galen would survive, however, and learned how to control his implants with help from the SIS. Using his new abilities, Galen would go deep undercover into Sith space. He contacted the Knight who had saved him and told them about his assignment, thanking the Jedi for showing Galen that he still had something to live for.[6]
Galen first appears in Star Wars: The Old Republic as part of the main story quests for the Jedi Knight story arc. At the end for the dark side option, when Galen is a Power Guard cyborg, the Republic player can choose to kill him instead of letting him live and letting him sacrifice himself.