“Jolly Red Elf” — CBI Agent Kimball Cho (Tim Kang, left) and CBI Senior Agent Teresa Lisbon (Robin Tunney, right) investigate the National Society of Authentic Santas when one of them is found murdered, on THE MENTALIST, Thursday, Dec. 9 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS. ©2010 CBS BROADCASTING INC. All Rights Reserved.