Mac is is one of the main characters in from the Cartoon Network original series Foster's Home For Imaginary Friends. He is a bright, unselfish, creative young boy who created Bloo at the age of three. Mac is unusually clever and almost always knows what to do whenever there is a problem.

In the series' Christmas episode, "A Lost Claus", Mac finds himself not believing in Santa Claus as a result of being told by Mr. Herriman that kids get so excited that they just imagine Santa.

This article about a character from either a Christmas movie, television episodic series or special with a Christmas theme is a stub. Please help to expand this article in the Christmas Specials Wikia.