Telos V is a fictional planet initially developed by BioWare for the role-playing game Star Wars: Knights of the Old Republic and then further developed by Obsidian Entertainment for its sequel Star Wars: Knights of the Old Republic II: The Sith Lords. Those who sought to become Jedi yet failed to earn the title became farmers on the planet in order to serve the galaxy by other means. It was the home-world of Carth Onasi and his family.
During the Jedi Civil War, Sith Admiral Saul Karath demanded the planet's surrender, and when Telos refused, Karath, under Darth Malak's orders, bombarded and destroyed the planet's surface. Carth's wife Morgana died before she could receive medical treatment, and the Sith captured Carth's son Dustil.
Carth and the player would later confront and fight Admiral Karath onboard the Leviathan.
In material cut from Knights of the Old Republic II, Atris reveals that the Jedi intended to have Telos serve a a redoubt in the event that they were forced to flee from Dantooine, and Kreia, in turn, reveals that Darth Revan ordered the attack in order sent a message to the Jedi: that they wouldn't have any place to retreat to. Kreia's cut dialogue also hints at the existence of the hidden HK-50 droid factory beneath Telos' surface, although the factory, too, was cut.
The planet Telos, decimated by the Sith during the Jedi Civil War.
Before the war, Jedi who failed their training were sent to the fields of Telos, to serve the galaxy… not as Jedi Knights, but as farmers and laborers.
The destruction of Telos was complete – I doubt any Jedi remain. Yet there may be… echoes of their passing.— Kreia, in Star Wars: Knights of the Old Republic II: The Sith Lords
It was always intended for the Jedi to retreat to Telos should Dantooine be attacked – taking all their lore with them. We could not allow the tragedy at Ossus to happen again.
Such an act marked Telos for destruction. It is why the Sith came here, though the fleet commanders [Saul Karath et al.] did not know why.
It is why Revan ordered its destruction to mark the beginning of the Jedi Civil War. It was a message that there would be no place for the Jedi to retreat, to hide.
I would not be surprised if Revan left other gifts beneath the surface of the planet – much can be buried beneath graveyards that will never be found.— Atris and Kreia, in Star Wars: Knights of the Old Republic II: The Sith Lords (cut content)
I told you about my homeworld. Telos. Four years ago, Saul [Karath] led the Sith fleet there and demanded its surrender. The planet refused and Saul proceeded to devastate its entire surface. Millions died.
I had… a wife [Morgana] and son [Dustil] on Telos. I thought they would be safe there. But my task force arrived too late to be of much help.
We didn't have enough medical supplies. The colony was burning and the dying were everywhere. I remember holding my wife and screaming for the medics. They… didn't come in time.— Carth Onasi, in Star Wars: Knights of the Old Republic
Everyone knows it was Malak who gave the order to attack your people, Carth. You can't blame Revan for that.— Canderous Ordo, in Star Wars: Knights of the Old Republic
- "Telos IV" entry at Wookieepedia