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| Jason Lee | David Seville | |
| David Cross | Ian | |
| Cameron Richardson | Claire | |
| Don Tiffany | Don the Sound Engineer | |
| Matthew Gray Gubler | Simon | |
| Jesse McCartney | Theodore | |
| Jane Lynch | Gail | |
| Jordan Green | Obnoxious Kid | |
| Veronica Alicino | Amy | |
| Alan Kemper Armani | Limo VIP | |
| Jay Bird | Party Guest | 
| Director | 
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| Producer | Janice Karman Ross Bagdasarian Jr. | ||
| Writer | Jon Vitti Will McRobb | ||
| Cinematography | Peter Lyons Collister | ||
| Musician | Christopher Lennertz | 
|  | A struggling songwriter named Dave Seville finds success when he comes across a trio of singing chipmunks: mischievous leader Alvin, brainy Simon, and chubby, impressionable Theodore. | 
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