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Ross Bagdasarian, Jr. as Dave Seville / Alvin / Simon / Grandpa Seville (voice) |
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Janice Karman as Theodore / Grandma Seville (voice) |
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Thomas H. Watkins as Mr. Carroll (voice) |
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Dody Goodman as Miss Miller (voice) |
| Art | Marty Warner | Prop Designer |
| Production | Thomas H. Watkins | Associate Producer |
| Production | Janice Karman | Producer |
| Art | Chris Schouten | Storyboard Artist |
| Production | Don Spencer | Supervising Producer |
| Sound | Thomas Chase | Original Music Composer |
| Sound | Steve Rucker | Original Music Composer |
| Art | Andrew Gaskill | Art Direction |
| Art | Andrew Gaskill | Storyboard Artist |
| Art | Scott Jorgenson | Storyboard Artist |
| Sound | Thomas H. Watkins | Recording Supervision |
| Art | Liz Rathke | Storyboard Artist |
| Writing | Diane Dixon | Writer |
| Art | Mike Sosnowski | Storyboard Artist |
| Production | Ross Bagdasarian, Jr. | Producer |
| Art | Kathy Carr | Storyboard Artist |
| Art | Ted Blackman | Background Designer |
| Visual Effects | Andrew Gaskill | Character Designer |
| Art | Dan Fausett | Storyboard Artist |
| Art | Timothy Barnes | Background Designer |
| Art | David Feiss | Storyboard Artist |
| Editing | Donald P. Zappala | Editor |
| Writing | Ross Bagdasarian | Characters |
| Production | Andy Heyward | Executive Producer |
| Production | Brian A. Miller | Associate Producer |
| Art | Douglas McCarthy | Storyboard Artist |
