|Tim Allen||Scott Calvin/Santa Claus/Toy Santa Claus|
|Elizabeth Mitchell||Carol Newman|
|David Krumholtz||Head Elf Bernard|
|Wendy Crewson||Laura Miller|
|Spencer Breslin||Number Two Elf Curtis|
|Aisha Tyler||Mother Nature|
|Jay Thomas||Easter Bunny|
Scott Calvin has been in the role of Santa for the past eight years, and his loyal elves consider him the best one ever. But the world of the ``Merry Old Soul'' turns upside down when he's dealt a double whammy of news: Not only has his son, Charlie, landed on this year's naughty list, but Scott discovers that he must marry by Christmas Eve -- just a month away! -- or he will stop being Santa Claus forever.