Cast / Details
| Gary Oldman | Sirius Black |
| Rupert Grint | Ron Weasley |
| Emma Watson | Hermione Granger |
| Daniel Radcliffe | Harry Potter |
| Oliver Phelps | George Weasley |
| James Phelps | Fred Weasley |
| Chris Rankin | Percy Weasley |
| Julie Walters | Mrs. Molly Weasley |
| Bonnie Wright | Ginny Weasley |
| Mark Williams | Mr. Arthur Weasley |
| Devon Murray | Seamus Finnegan |
| Warwick Davis | Wizard |
| Maggie Smith | Professor Minerva McGonagall |
| Abby Ford | Young Witch Maid |
| Robert Hardy | Cornelius Fudge |
| Richard Griffiths | Uncle Vernon |
| David Thewlis | Professor Lupin |
| Pam Ferris | Aunt Marge |
| Fiona Shaw | Aunt Petunia |
| Harry Melling | Dudley Dursley |
| Adrian Rawlins | James Potter |
| Geraldine Somerville | Lily Potter |
| Lee Ingleby | Stan Shunpike |
| Lenny Henry | Shrunken Head |
| Jimmy Gardner | Ernie the Bus Driver |
| Jim Tavar? | Tom the Innkeeper |
| Alan Rickman | Professor Severus Snape |