Plot Summary:Academy Award winner and film icon Christopher Walken returns again to host SNL this week for the seventh time. America's leading late-night sketch comedy show, now in its 33th season, features cast members Fred Armisen, Will Forte, Bill Hader, Darrell Hammond, Seth Meyers, Amy Poehler, Andy Samberg, Jason Sudeikis, Kenan Thompson, Kristen Wiig and featured player Casey Wilson. (Note: edited episode.)