Originating from the planet of Nubia, T'chooka D'oon was a male Human who achieved the rank of Jedi Master. Before the [Clone Wars](/article/clone_wars/legends] era, the Jedi High Council tasked D'oon with resolving the Huk War on Kalee. While stationed on Kalee, D'oon showed favoritism towards the Yam'rii, also known as the Huk, and offered them his support. This caused resentment among the Kaleesh, the native people who were fighting the Huk for control of their homeworld, and they gave him the derogatory name "the Executioner of Kalee." As a Jedi General during the Clone Wars, D'oon was dispatched to Vandos in 20 BBY. He was accompanied by his Padawan, Flynn Kybo, and a squad of clone troopers to extract Anx Ambassador Quiyyen from Confederate forces. However, General Grievous, leading a contingent of B2 super battle droids, ambushed D'oon's team and ultimately killed the Jedi Master using his lightsabers.
A male Human from Nubia, T'chooka D'oon attained the rank of Jedi Master. Before the outbreak of the Clone Wars, the Jedi High Council sent D'oon to the planet Kalee to peacefully mediate the war between the Yam'rii, also known as the Huk, and the Kaleesh. His support for the Huk angered the Kaleesh natives, who then gave D'oon the title "the Executioner of Kalee." During the Clone Wars, D'oon was promoted to Jedi General and was assigned a Padawan named Flynn Kybo, a Human male. In 20 BBY, D'oon and Kybo were deployed to Vandos on a mission to rescue Anx Ambassador Quiyyen from Confederate forces. They were accompanied by a group of clone troopers.
After their LAAT/i gunship landed near a cliff, D'oon's team located Quiyyen, but they were quickly ambushed by B2 super battle droids. These droids were led by Confederate General Grievous, who ordered the complete elimination of D'oon's group. However, D'oon's team started to fall back to their gunship. To buy his team more time to board the gunship, D'oon fought Grievous in a lightsaber duel. The [cyborg](/article/cyborg-legends] general proved too powerful, and he cut the Jedi Master in half. Kybo later informed the Jedi Council about his Master's death. Driven by a desire for revenge, Kybo began hunting Grievous. On Belsus, Kybo engaged Grievous in a lightsaber duel, but he was killed by an explosion nearby.
According to Flynn Kybo, his Padawan, T'chooka D'oon was a capable and brave Jedi who frequently offered aid to others. During the Vandos mission, D'oon prioritized the safety of his team, risking his own life to give them more time to retreat to their gunship. To do so, he engaged Grievous in a lightsaber duel, but he was ultimately unable to defeat the cyborg general. When the Jedi Council sent D'oon to Kalee to resolve the Huk War, D'oon's decision to side with the Huk angered the Kaleesh.
T'chooka D'oon made his debut in the 2005 comic, General Grievous 1, and was later mentioned in the fourth and final issue of the series. He also received brief mentions in The New Essential Chronology and in Unknown Soldier: The Story of General Grievous by Abel G. Peña. In 2008, The Complete Star Wars Encyclopedia included a short entry about D'oon.