Ross Bagdasarian, Jr. Alvin, Simon, David Seville (voice) |
|
Janice Karman Theodore, Tommy's sister (voice) |
|
Frank Welker Santa Claus, doctor (voice) |
|
Charles Berendt Clyde, Crashcup (voice) |
|
R.J. Williams Tommy Waterford (voice) |
|
June Foray Mrs. Waterford / Mrs. Claus |
Writing | Ross Bagdasarian, Jr. | Writer |
Writing | Janice Karman | Writer |
Visual Effects | Chuck Jones | Character Designer |
Art | Toby Bluth | Production Design |
Art | Toby Bluth | Background Designer |
Directing | Phil Monroe | Director |
Writing | Hal Mason | Story |