NBC has tapped The Big Bang Theory star Jim Parsons to topline its animated holiday special Elf: Buddy’s Musical Christmas set to air December 16 at 8 PM. Parsons will voice Buddy in the special based on the 2003 film Elf starring Will Ferrell and the hit Broadway show Elf: The Musical.

Santa narrates the story of Buddy’s travels to New York City to meet the father he never knew he had. Along the way his unrelenting cheer transforms the lives of everyone he meets and opens his father’s eyes to the magic of Christmas. Voice cast also includes Mark Hamill, Ed Asner, Fred Armisen, Jay Leno, Matt Lauer, Gilbert Gottfried, Kate Micucci, Rachael MacFarlane, Max Charles and Steve Higgins.

Elf: Buddy’s Musical Christmas is produced by Warner Bros. Animation.