| Name | Role | Ensemble |
| Alex Rees | Wayne Hopkins | Puffs |
| Sam Dowling | Oliver Rivers | Puffs |
| Mylie Easton (double cast) Sibella Thiele (double cast) | Megan Jones | Puffs |
| Elliot Lemon | Narrator 1 | |
| Liam Zoelle | Narrator 2 | |
| Hannah Froelich | Leanne | Puffs |
| Riva Papadimitriou | Ernie Mac | Puffs |
| Astrid Panton | J Finch Fletchley | Puffs |
| Cleo Steele | Sally Perks | Puffs |
| Aggie Palmer | Susie Bones | Puffs |
| Matt Hallam | Cedric Diggery | Puffs |
| Evie Pallikaros | Hannah | Puffs |
| Milla Besanko | Mr Voldy | Teacher Faculty/Death Buddies |
| Anika Lal | Xavier Jones | Teacher Faculty/Death Buddies |
| Issy Ruschena | Harry Potter | Puffs |
| Page Ward | Hermoine 1 | Puffs |
| Gabby Anderson | Hermoine 2 | Puffs |
| Emma Levelt | Hermoine 3 | Puffs |
| Aerin Stockdale | Ginny | Puffs |
| William Owbridge | Clumsy Longbottom | Puffs |
| Emma Neden | Blondo Malfoy | Puffs |
| Georgia Vasiljevic | Seamus | Puffs |
| Joanna Zhang | Goyle | Puffs |
| Karine Pang | Viktor | Puffs |
| Nico Chen | Colin | Puffs |
| Alexandra Wilson | Frenchy | Puffs |
| Emily Curry | Zach Smith | Puffs |
| Teagan Loewy | Uncle Dave | Teacher Faculty/Death Buddies |
| Abi Campbell | Hagrid | Teacher Faculty/Death Buddies |
| Kristian Aigars | A Certain Potions Teacher | Teacher Faculty/Death Buddies |
| Charlotte Roberts | 1st Headmaster | Teacher Faculty/Death Buddies |
| Ava Imre | 2nd Headmaster | Teacher Faculty/Death Buddies |
| Christian Jones | Professor Locky | Teacher Faculty/Death Buddies |
| Savannah Dallison | Professor McG | Teacher Faculty/Death Buddies |
| Sebastian Jones | Professor Turban | Teacher Faculty/Death Buddies |
| Arielle Edwards | Professor Sprouty | Teacher Faculty/Death Buddies |
| Jemima Miller | Professor Lanny | Teacher Faculty/Death Buddies |
| Zoe Chambers | Ghost History Teach | Teacher Faculty/Death Buddies |
| Sophia Xu | Runes Teach | Teacher Faculty/Death Buddies |
| Harper Easton | Ms Babble | Puffs |
| Billie Ball | Real Mr Moody | Teacher Faculty/Death Buddies |
| Molly David | Mr Nick | Teacher Faculty/Death Buddies |
| Laura Hu | A Fat Friar | Puffs |
| Erika Spirdonoff | Myrtle | Puffs |
| Allegra Toll | Sorting Hat | Teacher Faculty/Death Buddies |
| Jemma Manku | Rita Scooter | Teacher Faculty/Death Buddies |
| William Quinn | Mr Bagman | Teacher Faculty/Death Buddies |
| Charlie Rose | Death Buddy 1 | Teacher Faculty/Death Buddies |
| Genevieve Bussey | Helga | Puffs |
| Arielle Edwards | Rowena | Puffs |
| Zoe Chambers | Ric Gryff | Puffs |
| Edith Leverkuehn | Sal | Puffs |
| Harry Lasky | Bippy | Puffs |
| Pippa Riley | Scorpy | Puffs |
| Eloise Pfeiffer | A Dragon and teddy bear | Puffs |
| Grace Newitt | Giant Spider | Puffs |
