Duncan Ashe

ODuncan was a wizards who attended Hogwarts School of Witchcraft and Wizardry in the second half of the 20th century and was Sorted into Slytherin. He was friends with Jacob, from his first day at school until his dying day. He was also friends with the school Poltergeist, Peeves. After his death, Duncan retuned as a ghost and stayed at Hogwarts, though he rarely showed himself to the other residents of the Castle.