Alvin learns the true meaning of Christmas.
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
Writer
Chuck Jones
Character Designer
Toby Bluth
Production Design
Background Designer
Phil Monroe
Director
Hal Mason
Story