Katsume

Katsume (Cat-Soo-Me) is the chairman of the adventurer group known as the Legeslatum he plays a major part in the Torment quest.

Torment quest
During the Torment quest Katsume is one of the five adventurers who don't die. You speak to him to start the quest. He is able to one hit a level 75 warrior. At the end of the quest Katsume is blown up and his arm burnt. After the quest he and the other survivors can be found roaming the world.

Revenge of a Demon
In Revenge of a Demon Katsume and the rest of the Legeslatum are invited to a ball in the palace of light where Katsume introduces his old tutor Sensei Jitsu who is subsequently killed. The ball is revealed to be a revenge plot from the fiance of a member of the Legeslatum who was killed during the Torment quest.

The Life of Katsume
In the Revenge of a demon quest, the adventurer pickpockets Sensei Jitsu for a book called "The Life of Katsume" in the book it is revealed that Katsume comes from the eastern lands where Jitsu had found him unconscious in the desert, nursed him back to health and took him on as his apprentice.

"As I wandered the desert, I noticed a bundle of rags lying in the lee of one particularly large dune. Overcome by curiosity, I crept carefully towards it. It was a middle-aged man wearing tattered robes, he was obviously unconscious" - "The Life of Katsume"

The Dagon'Hai
In The Dagon'Hai quest Katsume play a minor role in which he tells the player of Sil'as Dahcsnu's plot and later fights Sil'as.

History
Much of Katsume's life remains shrouded in mystery, it is known that he was found in a desert in the Eastern Lands near the end of the Fourth Age, his longevity may suggest that he is not human.