Jamie Chung will play the fiance of Stu, the character portrayed by Ed Helms. Bradley Cooper, Zach Galifianakis and Justin Bartha are reprising their roles; Liam Neeson recently replaced Mel Gibson in the role of a tattoo artist in Thailand.
The sequel follows the main characters as they take a boys' trip to Thailand with a dangerous stop in Bangkok. Asian gangster Mr. Chow, played by Ken Jeong, will also return.
The script is penned by Todd Phillips, Scot Armstrong and Craig Mazin.
Production is currently underway.