A Certain Potions Teacher: The perpetually exasperated dungeon master of sarcasm, doling out insults and docking Puff points with glee.
First Headmaster: A kindly old leader who loves giving and taking points with whimsy.
Second Headmaster: A somewhat gruffer era of leadership, and definitely a different person.
Harry: The chosen one who pops in and out, obliviously stealing the spotlight with heroic ease.
Professor McG: Brisk, authoritative, but secretly rooting for everyone.
Professor Sproutty: Plant enthusiast with a soft spot for life lessons.
Real Mr Moody: Gruff, intense, and keen on the unforgivable curses.
Professor Turban: Nervous stammering hides something sinister.
A Fat Friar: A well‑meaning ghost mentor with bruised self‑esteem.
Myrtle: The bathroom ghost with a knack for awkward interruptions
Blondo Malfoy: The sneering bully who is blonde.
Sorter Hat (voice): A hat that sorts.
Uncle Dave: Wayne’s beer‑in‑hand guardian from New Mexico.
Professor Locky: A smiley fraud.
Ginny: A sweet redhead with a suspicious diary;
Death Buddies: Voldy’s entourage.
A Very Tall Man: A very tall man with a very brief appearance.
Professor Lanny: The slightly unhinged seer of doom in Divination
Ms. Babble: Earnestly explaining mundane Mug-world items.
Colin: A student who takes pictures annoyingly.
Mr. Nick: A friendly-enough ghost.
Helga: The founding Puff, a puppet.
Sal: The founding Snake, a puppet.
Rowena: The founding Smart, a puppet.
Ric Gryff: The founding Brave, a puppet.
Rita Scooter: A gossip-hungry journalist cameo.
Hermeoone #1/2/3: Cameos, used purely for time‑turner gags.
Goyle: A monosyllabic brute.
Clumsy Longbottom: A bumbling Brave.
Frenchy: A comically French champion.
Viktor: The intimidating exchange student.
Ghost History Teacher: A droning specter.
Seamus: A student being sorted.
Mr Bagman: A passing sports commentator.
Zach Smith: A jock – one scene, but the scene is his.
Bippy: A house elf.