Opus the Penguin (voice)
Michael Bell
Truffles / The Ducks (voice)
Joe Alaskey
Bill (voice)
John Byner
Chicken (voice)
Tress MacNeille
Ronald-Ann (voice)
Alexaundria Simmons
Milquetoast (voice)
Dustin Hoffman
Santa Claus (voice)
Frank Welker
Santa (voice)
Andrew Hill Newman
Kiwi (voice)
Robin Williams
Executive Producer
Steven Spielberg
Kathleen Kennedy
Animation
Gavin Dell
Frank Marshall
Supervising Animator
Ron Hughart
Producer
Peggy Regan
Craig Kellman
Berkeley Breathed
Writer
Book
Mark Koetsier
Director
Skip Jones
Music
Thomas Chase
Steve Rucker
Executive In Charge Of Production
Paul B. Strickland
Sound Re-Recording Mixer
Vince Colavitti
Sound Editor
Timothy A. Carpenter
Supervising Film Editor
Larry C. Cowan
Layout
Gay Lawrence
Valerio Ventura
Gary Mouri
Guy Vasilovich
Ellen Drucker
Klay Hall
Linda Miller
Mark Pudleiner
Matthew Bates
Daniel Bond
Jon L. Hooper
Ernie Keen
Juliana Korsborn
Cynthia Overman
Robert C. Ramirez
Marty Scully
Brian Sheesley
Chad Stewart
Joe D. Suggs
Special Effects
Allen Foster
Kathleen Quaife-Hodge
Don Judge
Cristi Lyon
Sean Edberg
Ethan Kanfer
Chris Mitchell
Sachiko Sato
Jennifer Stillwell