Neil Patrick Harris Will Be Causing Trouble In 'A Very Harold And Kumar Christmas'

John Cho and Kal Penn are central to the success of the two "Harold and Kumar" movies, no question. But Neil Patrick Harris? A very close second. Appearing as a drug-addled, sociopathic version of himself, the "How I Met Your Mother" star contributes to some of the most memorable scenes in the first two movies.

Now, with "A Very Harold and Kumar Christmas" on the way and officially in production, we have confirmation: NPH is back! The confirmation comes from the man himself, who sat down for a chat with the folks at Hollywood.com. There's no word on how he'll factor into the story, but it ought to be interesting since (**SPOILER ALERT**) he was killed by an angry Beverly D'Angelo in "Escape from Guantanamo Bay."