| Episode credited cast: |
 | Janice Karman | - | Theodore Seville / Brittany Miller / Jeanette Miller / Eleanor Miller (voice) |
 | Ross Bagdasarian Jr. | - | David 'Dave' Seville / Alvin Seville / Simon Seville (voice) (as Ross Bagdasarian) |
| Rest of cast listed alphabetically: |
 | Derek Barton | - | Additional Voices (voice) |
 | Philip L. Clarke | - | Additional Voices (voice) (as Phillip Clark) |
 | Dody Goodman | - | Miss Rebecca Miller (voice) |
 | Tress MacNeille | - | Additional Voices (voice) |
 | Kerrigan Mahan | - | Additional Voices (voice) |
| Ken Sansom | - | Additional Voices (voice) |
 | Frank Welker | - | Additional Voices (voice) |
 | Alan Young | - | Additional Voices (voice) |
hd.thomson-multimedia