Motion pictures featuring who abound and apparently constitute their own subgenre of the Christmas film genre, one of which is played by an American actor known for portraying Randy Taylor on "Home Improvement" ? 
Santa Claus in film: Motion pictures featuring Santa Claus abound and apparently constitute their own subgenre of the Christmas film genre. Jonathan Taylor Thomas:  He is known for portraying Randy Taylor on "Home Improvement" and voicing young Simba in Disney's 1994 film "The Lion King".
Santa Claus