What is the name of the person who tells Père Noël if children have been well behaved or not?

The person who informs Père Noël about children's behavior is often referred to as "Le Petit Jésus" or simply "The Christ Child" in some traditions. In other cultures, this role is sometimes filled by Santa's helpers or elves, who keep track of children's actions throughout the year. The concept varies by region, but the underlying idea is that someone keeps a record of children's behavior to determine if they deserve gifts.