- Perfect Peter as Harry Potter
- Goody Goody Gordon as Ron Weasley
- Gorgeous Gurinder as Hermione Granger
- The Fat Controller (from Thomas and Friends) as Professor Dumbledore
- Miss Battle Axe as Professor McGonagall (both have Scottish Accents)
- Henry's Dad as James Potter
- Henry's Mum as Lily Potter
- Anxious Andrew as Neville Longbottom
- Beefy Bert as Hagrid
- Soggy Sid as Professor Snape
- Sigmund The Sorcerer (from Fanboy & Chum Chum) as Gilderoy Lockhart
- Pimply Paul as Argus Filch
- Big Boss as Lucius Malfoy
- Horrid Henry as Draco Malfoy
- Rude Ralph as Crabbe
- Mischievous Mike as Goyle
- Bossy Bill as teenage Tom Riddle
- Mutant Max as Lord Voldemort
- Sour Susan as Ginny Weasley
- Brainy Brian as Mr Weasley
- Moody Margaret as Bellatrix Lestrange
- Rabid Rebecca as Dolores Umbridge
- Mr Mossy as Sirus Black
- Tidy Ted as Remus Lupin
- Moe (from The Simpsons) as Mad eye Moody
- Mr. Burns (from The Simpsons) as Quirinus Quirrell
- Scott Ternorman (from South Park) as Uncle Vernon
- Rich Aunt Ruby as Aunt Petunia
- Stuck-up Steve as Dudley Dursley
- Slimy Sammy as Peter Pettigrew/Wormtail
- Fang the Hamster as Scabbers
- Greedy Graham as Fred Weasley
- Jolly Josh as George Weasley
Gorgeous Gurinder: "At least no one of Gryffindor had to buy their way in. They got in on pure talent."
Horrid Henry: "No one asked your opinion, you filthy little mudblood!"
Goody goody Gordon "You'll pay for that one, Henry! Eat slugs!"
Soggy Sid: "Mr Peter, our newest celebrity. Tell me, what is a bezoar?"
Peter Perfect: "I don't know, sir."
Soggy Sid: "Pity. Clearly, fame isn't everything, is it Mr Peter?"