 | James Corden als Paul Potts |
 | Alexandra Roach als Julz |
 | Julie Walters als Yvonne |
 | Colm Meaney als Roland Potts |
 | Jemima Rooper als Hydrangea |
 | Mackenzie Crook als Braddon |
 | Trystan Gravelle als Matthew |
 | Sion Tudor Owen als Choirmaster |
 | Alex MacQueen als Dr. Thorpe |
 | Miriam Lucia als Signora Fiorentino |
 | Stanley Townsend als Luciano Pavarotti |
 | Di Botcher als Nurse |
| David Frankel | Director |
| Justin Zackham | Screenplay |
| Harvey Weinstein | Executive Producer |
| Simon Cowell | Producer |
| Kris Thykier | Producer |
| Wendy Greene Bricmont | Editor |
| Jane Hooks | Co-Producer |
| Bob Weinstein | Executive Producer |
| Michael Menchel | Producer |
| Florian Ballhaus | Cinematography |
| Steve Whitney | Executive Producer |
| Brad Weston | Producer |
| Nick Dent | Supervising Art Director |
| Donald McInnes | Hairstylist |
| Dan Hubbard | Casting |
| Christine Blundell | Hairstylist |
| Alexandra Joyce | Makeup Artist |
| Colleen Kelsall | Costume Design |
| Christine Blundell | Makeup Artist |
| Christina Baker | Hairstylist |
| Celia Bobak | Set Decoration |
| Christina Baker | Makeup Artist |
| Alexandra Joyce | Hairstylist |
| Martin Childs | Production Design |
| James Wakefield | Art Direction |
| Theodore Shapiro | Original Music Composer |
