Who are Santas helpers?

Santa has a LOT of helpers. All the elves, his wife, and the parents of all the kids in the world. Everyone works together to make kids happy.

Elves, although according to the movie Rise of the Guardians, they are actually Yetis who assist Santa in making the toys but traditionally they are indeed Elves.

Reindeer also help a lot. And companies, who donate and trade products to Santa.