Stark had anticipated the move, however, and sent a navigation computer virus to the ships of Tarkin's armada. The virus played havoc with the navigation of the battleships, causing two thirds of them to come out of hyperspace into planets, suns, black holes, or other locations far from Troiken itself. The remaining third, including the Invincible, made it to Troiken intact, only to be met by Stark's far superior force. The Invincible sustained heavy fire, forcing Tarkin's aide, Jace Dallin, to order everyone to abandon ship.[3] Williams was able to find his way to an escape pod, which in turn landed on the planet below.[1] He and the other survivors from Tarkin's paramilitary retreated to Mount Avos, where they were met by the Jedi from the failed summit. Severalbattles ensued as Stark's men attempted to take Mount Avos;[3] Williams acquitted himself well during the various engagements,[1] until relief came from the Republic.[3] Due to his faithful service during the Stark Hyperspace War, Williams earned himself a place in the Republic's sanctioned Judicial Forces.[1]
Reaching the rank of lieutenant, Williams piloted the Consular-class space cruiserAcceptance. The Acceptance was later called into service during the Battle of Galidraan—the Governor of Galidraan had contacted the Jedi Order, claiming that a group of Mandalorian warriors were committing atrocities against his people. Five Consular-class cruisers, the Acceptance among them, delivered a team of twenty Jedi to the world to put a stop to the Mandalorians. The group's leader, Jedi MasterDooku, and his Padawan, Komari Vosa, traveled on the Acceptance itself.[4] During the mission, Williams met and befriended the captain of the Radiant VII, Maoi Madakor.[1] Though the Jedi won the Battle of Galidraan, it was done so at tremendous price, with eleven of the Jedi having lost their lives, and all but one of the Mandalorians perishing.[4]
Several years later, the Yinchorri of the Yinchorri system began acting aggressively toward their neighbors, prompting the Republic to act by sending in the Jedi to resolve the issue.[2] Williams and Madakor served together once again during what came to be known as the Yinchorri Uprising,[1] when the Senate voted to impose a technological embargo against the Yinchorri. The Jedi that had already been dispatched to amend the situation were struggling, and so the Senate sent in four Judicial navy attack groups to Uhanayih, the Yinchorri center of command.[5] During the Battle of Uhanayih, however, the Acceptance was destroyed, although Williams survived.[1]
Following the conclusion of the Yinchorri Uprising, Williams was tasked with piloting Senatorial shuttles on short trips from Coruscant, due to his loss of the Acceptance. A break from his usual itinerary came when Madakor personally requested that Williams serve as her co-pilot on the Radiant VII during a special mission. He accepted, and joined Madakor as she flew two Jedi, Qui-Gon Jinn and Obi-Wan Kenobi, to the blockaded world of Naboo in 32 BBY.[1] The Senate's new decision to tax the use of trade routes had caused the Trade Federation to protest by blockading the peaceful world of Naboo. Hoping to deal with the situation quietly, Supreme ChancellorFinis Valorum had secretly dispatched Jinn and Kenobi to negotiate a settlement with Trade Federation ViceroyNute Gunray.[6]
The Radiant VII is destroyed, resulting in Williams' death.
Madakor and Williams successfully delivered the two Jedi to the Trade Federation flagship, the Lucrehulk-class LH-3210 cargo freighterSaak'ak, but were then forced to wait until the Jedi returned. Williams began to grow impatient, but he was given no opportunity to act, as Trade Federation gunners destroyed the Radiant VII while it rested in the Saak'ak's hangar. Williams and Madakor perished in the ensuing explosion.[1] Simultaneously, the Federation had attempted to kill Jinn and Kenobi, but they failed. The blockade eventually escalated into a full-scale invasion, but the Federation was eventually beaten back, and Naboo was liberated.[6]
An adventurous and impatient man, Antidar Williams was eager to seek out and find excitement as a pilot, and in doing so ended up joining an illegal paramilitary force in his early career. Even after he had served in several major conflicts, he still possessed an adventurous spirit, as he demonstrated while waiting for Jinn and Kenobi to return from their negotiations on the Saak'ak.[1] During the Naboo mission, Williams was particularly nervous, as was his superior, Captain Madakor.[7]
In 2006, the character's backstory was written by Ian Tapley via the StarWars.comHyperspace feature "What's The Story?" Initially, Tapley wanted to tuckerize his own name while trying to concoct a first name for Williams, but was unable to do so successfully. Unable to remember the name of the actor who had played Williams, he instead chose to use an anagram of "radiant." In searching for a suitable homeworld for the character, Tapley selected a planet he thought was likely to go unused in future canon, Barkhesh, which had featured in the video gameStar Wars: Rogue Squadron, of which Tapley himself was a fan.[9]
Since the character dies in the opening of The Phantom Menace, Tapley tried to write him into as many adventures set before 32 BBY as he could. The first was the Stark Hyperspace War, from the 2001comic run of the same name. The second was the Battle of Galidraan, which was introduced in 2002's Jango Fett: Open Seasons. The third and final conflict was the Yinchorri Uprising, from 2000's Jedi Council: Acts of War. In Tapley's original submission, Williams was given the rank of captain at the time of the Yinchorri Uprising, but was demoted for the loss of the Acceptance. Tapley also suggests that Williams may have had relatives that participated in the Clone Wars and the Galactic Civil War.[9]