We knew it was coming, we knew where they were going, but we didn't know who would be joining them for another round of marijuana-induced adventures. And now we do. Eleven folks have joined Kal Penn (Kumar) and John Cho (Harold) in the long-awaited sequel to Harold and Kumar Go to White Castle. Harold and Kumar 2 (previously known as Harold and Kumar Go to Amsterdam ... except they don't really go to Amsterdam) has added -- deep breath -- David Krumholtz, Rob Corddry, Christopher Meloni, Ed Helms, Eddie Kaye Thomas, Paula Garcés, Jack Conley, Roger Bart, Danneel Harris, Eric Winter and -- drum roll please -- Neil Patrick Harris!

For die hard fans of the original film, the only name that really matters to you is Neil Patrick Harris, as his cameo in the first flick stole the show. Daily Show vets Corddry and Helms should also provide plenty of laughs along the way. Story picks up right where we left our two heroes: at White Castle, putting an end to their vicious case of the munchies. When Harold's crush Maria heads off to Amsterdam, the boys attempt to follow her ... only to be yanked off the plane when a fellow passenger suspects Kumar is a terrorist. From there, the duo travel a lot farther than the state of New Jersey -- from Guantanamo Bay, through the deep south and eventually ending up in "Bush country ..." all the while being chased by Homeland Security.

Production began last week in Louisiana, with original Harold and Kumar scribes John Hurwitz and Hayden Schlossberg writing and directing the follow-up. Currently, there's no word from New Line on a release date.