T4-O6

"This should be fun."

"T4 = Agrees with statement / Ready to fight Empire!"

- Sal and T4, shortly before their attack on Imperial Station Hord.

T4-O6, nicknamed T4, was an astromech droid built during the Great Galactic War, and which continued functioning into the succeeding Cold War between the Galactic Republic and the Sith Empire. Built specifically to cater to the needs of starships, T4 was an expert on all starship technology, ranging from starfighters to capital ships. The astro droid also possessed offensive capabilities, equipped with a blaster in his hull and a ray shield for protection.

Creation
T4 was built in 6 BTC by Calara, a Mirialan spacer who was part of a criminal gang led by the ruthless Kaliv. Originally possessing no personality and doing things to the letter, this changed when during a shootout between Calara and two thugs in a cantina on Belsavis, a stray blaster shot hit T4. When Calara rebooted the droid, he now possessed a vivid personality, wishing to help whenever necessary and eager to show others of what he could do.

T4 was built as part of the T4 series. Possessing a polygon head instead of a usual dome, he had a near-rectangular hull and tripod legs for moblity. While at first painted green by Calara, the clever droid devised a self-painting method, changing his colour to a browny-orange. His eye receptor was blue, meaning he was capable of scanning for electrical devices within his field of view, though he was later modified by Calara to be able to operate thermal scans as well.

Working as a droid
During the Great Galactic War, Kaliv's gang went from planet to planet, and so T4 was often busy, maintaining the many starships the gang used and serving as a courier when off-duty. T4 and Calara became close friends as time went on, and many gang members liked T4 for his willingness to work, though some members, like Kaliv's second-in-command, the Zabrak named Jorak, hated the droid due to his talkative nature, and Jorak even once tried getting rid of T4, though Calara managed to stop him.

Around a month before the War's end, the gang made it's new home on Dromund Kaas. However, T4 was accidentally abandoned in Kaliv's personal freighter, and was left untouched for weeks. Discovered again by Kaliv's newest recruit, a thirteen-year-old boy named Salovan, T4 quickly thanked the young recruit for switching the droid back on, and T4 soon got to work preparing Kaliv's ship to leave, reuniting with Calara, as well as Jorak, Kaliv and Hereson, a Twi'lek gunslinger who was unphased in any way by the astromech droid. The gang soon arrived on Coruscant shortly after the Sacking of Coruscant, and began prospering in the chaos that followed. T4 became an engineer for Kaliv's expanding fleet that operated from Coruscant's lower levels, and the poor droid began to see less and less of his friends.

Leaving Kaliv
Almost five years after arriving on Coruscant, Kaliv's gang had been caught up in a street war against Black Sun. Calara, who had begun to distrust Kaliv, fled to the pirates for safety, with Sal and Hereson helping her hide from Kaliv's wrath. Eventually, after intense negotiations, Black Sun handed over Calara to Kaliv, and T4 watched as Kaliv executed the rebellious Mirialan, though he spoke nothing of it, returning to his duties, despite his grief.

Barely a day later, T4 heard blasters in the hangar as he was inside Kaliv's freighter, with Sal and Hereson bursting on. T4, recounting that he saw Calara's death, agreed to leave Coruscant with Sal after learning that Kaliv had fled from the planet. T4 piloted the freighter to Nar Shaddaa, where, after nearly two years, Sal and Hereson found and killed Kaliv for his past crimes. Hereson, however, weary of the criminal life, went to settle down on Hutta, leaving Sal and T4 to go out into the galaxy alone.

The Pirate Droid
T4 became Sal's main partner-in-crime in space as the young smuggler became a pirate, rallying other pirates to his cause as he began an unofficial campaign against Imperial shipping in the Outer Rim. T4 served as the ship engineer as well as it's radio manager, and gave Sal some company as the only other crew member on the ship. T4 became famous after killing an Imperial commando team on Alderaan with a thermal detonator, earning the nickname 'The Pirate Droid' from pirates, Imperials and galactic civilians alike.

Seven years after the Treaty of Coruscant (7 ATC), T4 intercepted a transmission between an Imperial commando squad and an Imperial space station, codenamed 'Station Hord', which revealed that the Imperials had captured a Jedi Knight. Sal, knowing the reward for rescuing a Jedi Knight, quickly rallied his pirate allies to attack the Station, promising a cut of the reward. The rescue mission was successful, and the Jedi, a female Twi'lek named Erana Ryess, was brought back to Coruscant by Sal, earning the praise of the Republic and the Jedi Order.

Sal remained on Coruscant after forming a relationship with Erana, helping the young Jedi arrest criminal leaders on the planet, many of whom Sal had worked with in the past. T4, meanwhile, remained with Sal's ship (formally Kaliv's), finding whatever upgrades he could from Republic military donations. However, Sal and Erana soon split due to Erana's realization that she was breaking the Jedi Code. This coincided with Hereson contacting Sal again, telling the spacer that he needed to be taken off Hutta urgently. On the planet, Sal and T4 met Vidril Vesal, a Jedi Knight who had helped Hereson fight Imperials and Sith on Hutta. During an attack on Sal by an Imperial Agent and a later blood transfusion, the Jedi and smuggler were found to be half-brothers.

Vidril and the lost Sister
Hereson, Sal, Vidril and T4 arrived back on Coruscant, with Hereson recieving a hero's reception due to his role as part of the Freelancer Corps, a group of pirates that aided the Republic during the War, and Vidril being warmly recieved after many though he had perished, due to being gone for so long (around three years). Sal recounted to Vidril that he remembered a sister in infancy, spawning the chance that if the sister was part of the Empire, she could be Force-sensitive ike Vidril, and could become a Sith, leading Sal and Vidril to attempt to gain the Republic's permission to launch their own mission to find their lost sibling.

Taris
The brothers succeeded, and decided to search on Dromund Kaas for records that could reveal who adopted the sister from Balmorra (Sal's childhood home, where he remembered being in an orphanage with his sister). As they crossed the border on Taris between the Republic and Imperial zone to sneak to Dromund Kaas, T4 remained with the ship once more, though he wouldn't be completely idle.

Roaming a Republic colony on the planet, T4 intervened in a theft, apprehending an attempted murderer and earning praise from the locals. However, when the brothers returned, many wished for T4 to stay after befriending the droid, causing the brothers to argue with the colonists. Eventually, T4 intervened like his usual self, telling the colonists to stay safe and wishing them happy lives, before going with Sal and Vidril to Tatooine, where they believed their sister, apparently named 'Ciniriel', was on a mission as an Imperial Cipher Agent.

Tatooine
T4 accompanied Sal and Vidril in searching for Ciniriel on Tatooine, with his thermal scans aiding them in their search through the desert. Discovering that she intended to assassinate a Republic-friendly crime lord named Ko'ofo the Hutt, T4 managed to reach the Hutt in time, though discovered that Ciniriel had never even attempted to infiltrate the Palace. T4 then found a holoprojection waiting at the group's ship, discovering that Ciniriel wished to meet with them in Anchorhead.

Arriving to find Ciniriel under sedation and a group of Imperial soldiers, led by the Sith Lord Jurus, trying to take the Agent back to Dromund Kaas, a battle ensued. T4 ensured that the cantina residents were safe, killing one Imperial who tried using a dancer as a human shield. Eventually, Vidril defeated Jurus, who committed suicide instead of becoming a Republic prisoner, and Ciniriel was transported to Coruscant to be interrogated.

After a DNA test, it was confirmed that Ciniriel was Sal's sister and Vidril's half-sister. The brothers learnt, however, that Ciniriel had actually planned to defect, disllusioned by the Empire's cruelty and the malicious rule of the Sith. When Ciniriel suddenly asked if a fellow Agent had defected as well, it was learnt that a Watcher Agent, a female Chiss named Marsa, had also planned to defect. Realizing no one knew what she was talking about, Ciniriel realized that Marsa's attempt had failed. With Marsa carrying Republic secrets due to deals with Republic Intelligence, the group had a new mission: find Marsa.

Personality and characteristics
Cheerful, optimistic and always in a good modd, it could be assured that T4 could raise spirits at any time. A hard worker and a friendly droid, he also eagerly helped anyone or anything he could, loving nothing more than the satisfaction of getting a job done. T4 also had a keen interest in starships, knowing the entire known military databases of Imperial and Republic ships, and being able to identify almost any starship found in the known galaxy. He identified as a male, and his beeps were known to be quite high-pitched.

T4 had an orange paint job, with a modern looking yet unsymmetrical head unit and a block-like body. He had three tripods for mobility and was easily capable of traversing over rough ground. He was also equipped with rocket packs to get across large obstacles. He had a blaster fitted into his hull for defensive and offensive purposes, as well as a personal ray shield to protect against enemy attacks of any sort.