When Grouchy Smurf behaves badly to everyone and refuses to celebrate Christmas, the Smurfs of Christmas Past, Present and Future teach him to appreciate Christmas.
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Jack Angel
Papa Smurf (voice)
Fred Armisen
Brainy (voice)
Hank Azaria
Gargamel (voice)
Gary Basaraba
Hefty (voice)
George López
Grouchy (voice)
Melissa Sturm
Smurfette (voice)
Anton Yelchin
Clumsy (voice)
Frank Welker
Azrael (voice)
Kirk Baily
Additional Voices (voice)
Jess Harnell
Additional Voices (voice)