Drumknott is the accountant for Lord Vetinari in Ankh-Morpork, on Discworld.
During the events of Terry Pratchett's Going Postal (2010) played by Steve Pemberton
Moist Von Lipwig is placed in prison and uses a spoon to dig out the mortar around a stone block. After he removes the stone, he finds another stone wall, with a spoon in front of it. Drumknott claps his hands and tells Moist, he will be hung in half an hour. He is brought before Trooper who gets his signature. Drumknott walks up and tells Trooper to hurry it up on order of Lord Vetinari. After he digs up bags of stolen coins, Moist is brought before Lord Vetinari and set free and told the money will be kept by Drumknott, who will be in charge of paying any construction bills for the post office.