How about this: A League of Extraordinary Gentlemen styled Christmas special.
One of Santa’s elves: renegade wood sprite, out to end Santa’s slavery.
Caspar: Powerful wizard from the Orient, perpetually searching for ways to extend his lifespan.
The Little Drummer Boy: soldier-spirit which reincarnates in a new body every generation, fighting in every war in the last 2000 years.
Frosty: The magic hat found its way on to a snow sculpture made in the shape of a giant polar bear.
Dasher: the man on the inside, flying beast and architect of the fabled ‘reindeer games’ combat simulation.
Jacob Marley: troubled ghost, looking for revenge on Xmas in general. He helped an old friend redeem himself one Christmas Eve, yet received none of God’s forgiveness.