<Li> Jeffrey Kramer as Dr. Eric Towzer, B.Z.'s head of Research & Development . </Li> <Li> Christian Fitzpatrick as Joe, a homeless 10 - year - old orphan boy living on the hard streets of New York who befriends Santa and becomes Cornelia's best friend and conscience . </Li> <Li> Carrie Kei Heim as Cornelia, B.Z.'s 9 - year - old step - niece and orphan, who becomes Joe's conscience and best friend . </Li> <Li> John Barrard as Dooley, Santa's #2 at the North Pole . </Li>

Who plays the little girl in santa claus the movie