Wolf Sazen was a male Zabrak Jedi who was active during the Sith–Imperial War and the subsequent Second Imperial Civil War. He was Kol Skywalker's Padawan and the Jedi Master of Kol's son, Cade. Before Cade's training could be completed, Darth Krayt's army of Sith, led by Darth Nihl, attacked the Jedi Academy on Ossus and Kol was killed fighting them off so that the Jedi younglings and Padawans could escape. Nihl grievously wounded Sazen during the battle by cutting off his right arm and stabbing his chest, though Cade used the Force to bring him back from the brink of death. Ultimately, however, Cade fled to fight the Sith while Sazen and the other survivors escaped, and the young Skywalker was presumed dead.

Sazen spent several years in hiding, until he and Jedi Knight Shado Vao encountered Skywalker on Vendaxa. Sazen believed that Skywalker would be the one to unite the Jedi against Darth Krayt, though his former apprentice did not want to be a Jedi, and parted ways with Sazen and Vao. They eventually met again at the ruins of the Jedi Praxeum on Ossus, and Skywalker agreed to continue his training. However, Skywalker left after only just weeks, to face Krayt on Coruscant. Sazen, Vao, Jedi Master K'Kruhk, and their Yuuzhan Vong allies were hiding in the Jedi Academy when the Sith destroyed it, though they survived to take refuge at the Hidden Temple.

Sazen later went after his former apprentice as the forces opposing the Sith were joining together in an alliance. On the world of Wayland, Sazen successfully drove Cade back to the light side by telling him to use it instead of the dark side. After Cade swore to wage war against the Sith as their worst enemy and not as a Jedi, Sazen joined him and his friends and fought alongside Cade in his hunt for Sith scientist Vul Isen.

Cade and Sazen tracked the Givin to Utapau, where the Zabrak slew Darth Azard and Skywalker killed Isen. However, their success was tainted by news of Darth Krayt's resurrection. Shortly afterwards, Krayt's forces launched an all-out assault on the Hidden Temple. Sazen participated in the battle, but was forced to retreat with the arrival of specially-bred Sith troopers. Fleeing to Bastion, the allied Jedi-Imperial-Alliance fleet decided to attack a vunerable Coruscant. Sazen became a member of a small strike team to inflitrate the capital's planetary defense grid, ultimately succeeding in shutting it down. Heading to the Temple of the Sith, the Jedi Master engaged in a duel with Darth Stryfe, a fight in which neither survived. As Wolf Sazen became one with the Force, his former apprentice rushed off to find and kill Darth Krayt.