"Change of plans. We're going to Vegas." John Goodman's mysterious villain is featured on a character poster for The Hangover Part III. While we still don't even know his name, it's clear from the trailer that he initiates a chain of events that leads The Wolf Pack (Bradley Cooper, Zach Galifianakis, Ed Helms, and Justin Bartha) back to Las Vegas in search of Mr. Chow (Ken Jeong).