Alvin learns the true meaning of Christmas.
| Actor | Role |
|---|---|
 Ross Bagdasarian Jr.Alvin / Simon / David Seville (voice) | Alvin / Simon / David Seville (voice) |
 Janice KarmanTheodore / Tommy's Sister (voice) | Theodore / Tommy's Sister (voice) |
 Frank WelkerSanta Claus / Doctor (voice) | Santa Claus / Doctor (voice) |
| CCharles BerendtClyde Crashcup (voice) | Clyde Crashcup (voice) |
 R.J. WilliamsTommy Waterford (voice) | Tommy Waterford (voice) |
 June ForayMrs. Waterford / Mrs. Claus | Mrs. Waterford / Mrs. Claus |