Santa Claus is a character in Shrek the Halls. He is based on the English/American Holiday figure of the same name.
At the end of the special, he can be seen riding his sledge in the sky, when Gingy sees him he quickly runs inside while screaming.
While only appearing in Shrek the Halls and Shrek's Yule Log, he is shown to act like usual depictions of the character; jolly and whimsical.
He is shown to love milk and cookies, and will always take an opportunity to eat them. As seen in Shrek's Yule Log, he likes to tease Gingy by pretending to eat him.