What is the name of the actress who starred in Black Christmas alongside Co-Star Jessica Harmon? 
Jessica Harmon: Jessica Harmon (born December 27, 1985) is a Canadian actress. Jessica Harmon:  She co-starred in the slasher flick "Black Christmas" as Megan Helms. Black Christmas (2006 film): Black Christmas (abbreviated as Black X-Mas) is a 2006 American-Canadian slasher film written and directed by Glen Morgan and starring Katie Cassidy, Michelle Trachtenberg, Mary Elizabeth Winstead, Oliver Hudson, Lacey Chabert, Kristen Cloke, and Andrea Martin.
Black Christmas (abbreviated as Black X-Mas) is a 2006 American-Canadian slasher film written and directed by Glen Morgan and starring Katie Cassidy