Official Guess

Angelina - Nearly Headless Nick
Cormac - Haratio Cloke
Fred - Ambrose Swott
Lily - Peeves
Maxime - The Bloody Baron
Pomfrey - Edgar Cloggs

Amos - Edmund Grubb
Draco - Moaning Myrtle
Mirabella - Professor Cuthbert Binns
Newt - Lord Draben
Ron - The Grey Lady
Sev - Fat Friar