Cast (in credits order) complete, awaiting verification
| Chris Columbus | ... | Self | |
| David Heyman | ... | Self | |
| Stuart Craig | ... | Self | |
| John Richardson | ... | Self | |
| Nick Dudman | ... | Self | |
| Roger Pratt | ... | Self | |
| Lindy Hemming | ... | Self | |
 |
Eithne Fennel | ... | Self (as Eithne Fennell) |
|
|
Amanda Knight | ... | Self |
|
|
Peter Honess | ... | Self |
| John Williams | ... | Self | |
| Rest of cast listed alphabetically: | |||
| Kenneth Branagh | ... | Prof. Gilderoy Lockhart (archive footage) (uncredited) | |
| Tom Felton | ... | Draco Malfoy (archive footage) (uncredited) | |
| Rupert Grint | ... | Ron Weasley (archive footage) (uncredited) | |
| Richard Harris | ... | Professor Albus Dumbledore (archive footage) (uncredited) | |
| Shirley Henderson | ... | Moaning Myrtle (archive footage) (uncredited) | |
|
|
Josh Herdman | ... | Gregory Goyle (archive footage) (uncredited) |
| Jason Isaacs | ... | Lucius Malfoy (archive footage) (uncredited) | |
| Miriam Margolyes | ... | Prof. Pomona Sprout (archive footage) (uncredited) | |
| James Phelps | ... | Fred Weasley (archive footage) (uncredited) | |
| Oliver Phelps | ... | George Weasley (archive footage) (uncredited) | |
| Daniel Radcliffe | ... | Harry Potter (archive footage) (uncredited) | |
| Julie Walters | ... | Molly Weasley (archive footage) (uncredited) | |
| Emma Watson | ... | Hermione Granger (archive footage) (uncredited) | |
| Jamie Waylett | ... | Vincent Crabbe (archive footage) (uncredited) | |
| Mark Williams | ... | Arthur Weasley (archive footage) (uncredited) | |
| Bonnie Wright | ... | Ginny Weasley (archive footage) (uncredited) | |
Produced by
| Michael Crawford | ... | executive producer (uncredited) |
Sound Department
| Chris Colley | ... | re-recording mixer (uncredited) |
