Yaa'k Borin

"You fools think you can stop me! I taught you better Norac, join me and revel in the Master's glory. He will forever grant me power. Power the Jedi can no longer hold me from! My chains are broken!"

- Yaa'k Borin to the Jedi strike team led by his former apprentice

Yaa'k Borin was a Male Fallen Jedi Master, Yaa'k was a former member of the  until he was maddened during a Jedi expedition to, he murdered all the members of the expedition serving "The Master". Yaa'k was eventually defeated by his former pupil though he managed to afflict him with the Shadow Bane Virus, buying Borin time to complete a ritual that killed him but saved his spirit.