Performer(s) Appeared in Bryony is the tritagonist of the 2011 film Arthur Christmas and only one who found the missing present is for Gwen. She along with Arthur Claus, his grandfather Grandsanta and Grandsanta's pet reindeer travel via Grandsanta's old sleigh Eve (pulled by the great-great-grandchildren of Santa's original eight reindeer) to deliver a bike to a young girl named Gwen after it is forgotten accidentally.