Yuledan was a male Jedi who fought for the New Jedi Order during the conflict known as the Yuuzhan Vong War.
In 25 ABY, Yuledan was captured by the Yuuzhan Vong early in their invasion of the galaxy. His capture occurred either before or during the Battle of Dibrook, after which he was taken to a Shaper research facility located on the planet Dibrook. There, he was subjected to experiments by Master Shaper Nagme. Later, Commander Tsalok inserted a tizowyrm into Yuledan's ear with the intention of extracting information about the whereabouts of Jedi Padawan Finn Galfridian. To further compel him, Tsalok used a spineray on his back to torture him until he revealed the information. For several days, Yuledan resisted, drawing strength from the Force. Ultimately, he succumbed and revealed Finn's name and his training location on Yavin 4 to Tsalok. When New Republic and refugee forces breached the facility, forcing the Yuuzhan Vong to evacuate the Shapers, Tsalok took Yuledan with him off-world. Kaye Galfridian later recovered his lightsaber.
Yuledan was transported by Tsalok, along with the shapers, to Rychel, a world under Yuuzhan Vong control. The experiments on Yuledan continued, but Nagme and the other Shapers were careful not to break him completely, as it would jeopardize their plans for him. To maintain his spirit, they allowed Yuledan to escape his confinement, during which he obtained a weapon and attempted to assassinate Nagme. Tsalok intervened, seizing Yuledan and throwing him against a well. He was about to impale him with an amphistaff when Nagme stopped him. She explained the situation, but Tsalok remained adamant that Yuledan would not touch her. He advanced towards Yuledan, who raised his arms in defense, but Tsalok severed his right hand as punishment.