spellcasters other members of a secret society of slytherins and ravenclaws dedicated to โthe pursuit of knowledge whatever the cost,โ someone who liked his old mentor a lot (or is maybe her child) and is very suspicious about her unexpected unexplained death and sniffing around about it, reporters for different papers because this comm has the most insane opportunities to cause chaos with journalism (or โjournalismโ), staunch good guys who see themselves as heroes, actual undercover full-on dark wizards, maybe a spy or two from another wizarding government, foreigners he can bicker with in different languages, a total dirtbag ex, more diagon alley shopkeepers that heโs known for years, more aurors for fun side missions, and freddy carter as a half goblin