Zim's Yuletide plan to overtake Earth by posing as Santa starts to backfire when he takes on characteristics of the Jolly Old Elf. Dib, meanwhile, tries to save the population from impending doom.
Quest roles:
Melissa Fahn(Gaz (voice)), Andy Berman(Dib (voice)), Rodger Bumpass(Professor Membrane (voice)), Richard Steven Horvitz(Zim (voice)), Rosearik Rikki Simons(GIR (voice)), Candi Milo(Clara / Woman in Crowd (voice)), Dee Bradley Baker(Santa Gerg / Guy in Crowd #1 / Cutest Little Kid (voice)), Jhonen Vasquez(Minimoose / Computer / Precocious Kid / Kid in Crowd (voice)), Kathryn Fiore(Kid / Santa Fan #2 / Little Girl (voice)), Jeffrey Jones(Presidentman / Crowd Man / Guy in Crowd #2 (voice))