Mrs. Mouse is reading "A Visit from St. Nicholas" to her brood when a cat tries to break in. The cat overhears them arguing about the existence of Santa, so he dresses up accordingly.
Billy Bletcher
Cat / Fake Santa Claus (voice) (uncredited)
Bernice Hansen
Little Cheeser / Other Mice Children (voice) (uncredited)
Dorothy Lloyd
Grandma Mouse (voice) (uncredited)
The Night Before Christmas
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Tom and Jerry: Snowman's Land
Tom and Jerry: A Nutcracker Tale
A Charlie Brown Christmas
Puss in Boots: The Three Diablos
Shaun the Sheep: The Flight Before Christmas
A Garfield Christmas
Rudolph the Red-Nosed Reindeer & the Island of Misfit Toys
The Boss Baby: Christmas Bonus