Theradas Buhn was a Tiste Edur and the eldest son of the Buhn bloodline. He and his brother, Midik, accompanied the Sengar brothers on their quest for Hannan Mosag. Though unblooded prior to the quest, he was considered unequalled in leading raids from the sea. When he was finally blooded in a battle with the Merude, he was left with a long, crooked scar within "a seamed concave depression on [the right] side of his face, and a certain flat look to his eyes that hinted of unseen wounds that would never heal." The wound also left him with a "thick, blunted voice".