Terrence "Renny" Runcorn is one of two Slytherins to be in DA in DAYD. His father is Albert Runcorn, who Harry Potter impersonated in the Ministry of Magic. He dies in Dumbledore's Army and the Year of Darkness. He sends two sets of Death Eater outfits to the DA, which Neville Longbottom and Hannah Abbott use. He brings his friend Malcolm Braddock to the meetings.