The leader of the Cult of the Coin and one of the richest Trolls in The Grand City of Mor'Koc, Sir Di'Do spends his days running his merchant Empire which carries goods across the Imperial Troll Empire.
He is well known for paying above average wages and making charitable donations to the less fortunate.
During the events of A Short Month, he is one of the few major figures in the city to genuinely befriend Bel Kuko, and during the final day he leads the full Cult of the Coin into battle against the Dragon army. During the final battle, he chooses to remain behind facing two Ancient Dragons in order for Bel to reach her objective. This sacrifice costs him two Paladins and his left arm, but is successful.
Sir Di'Do enters into an agreement with Orogull where he sells the Cult's land at the centre of Mor'Koc for a single Adamant coin she had stolen from the Troll Bridge Association. This decision is remembered by history as one of the worst business decisions and spawned an ongoing TBA investigation.