Cast (in credits order) complete, awaiting verification
| David Heyman | ... | Self | |
| Steve Kloves | ... | Self | |
| Mark Radcliffe | ... | Self | |
| Alfonso Cuarón | ... | Self | |
| J.K. Rowling | ... | Self | |
| Chris Columbus | ... | Self | |
| Stuart Craig | ... | Self | |
| Rest of cast listed alphabetically: | |||
| Robbie Coltrane | ... | Rubeus Hagrid (archive footage) (uncredited) | |
| Tom Felton | ... | Draco Malfoy (archive footage) (uncredited) | |
| Michael Gambon | ... | Prof. Albus Dumbledore (archive footage) (uncredited) | |
| Richard Griffiths | ... | Vernon Dursley (archive footage) (uncredited) | |
| Rupert Grint | ... | Ron Weasley (archive footage) (uncredited) | |
| Gary Oldman | ... | Sirius Black (archive footage) (uncredited) | |
| James Phelps | ... | Fred Weasley (archive footage) (uncredited) | |
| Oliver Phelps | ... | George Weasley (archive footage) (uncredited) | |
| Daniel Radcliffe | ... | Harry Potter (archive footage) (uncredited) | |
| Alan Rickman | ... | Prof. Severus Snape (archive footage) (uncredited) | |
| Maggie Smith | ... | Prof. Minerva McGonagall (archive footage) (uncredited) | |
| Emma Thompson | ... | Prof. Sybil Trelawney (archive footage) (uncredited) | |
| Emma Watson | ... | Hermione Granger (archive footage) (uncredited) | |
Produced by
| Michael Crawford | ... | executive producer (uncredited) |
Sound Department
| Chris Colley | ... | re-recording mixer (uncredited) |
