Ken Jeong (Community) spent his time in The Hangover as a mean, naked gambler that hit so hard; he returned in The Hangover Part II, but [spoiler alert] spent the better part of the movie presumably dead.  In The Hangover Part III, Jeong's role will be substantially more involved.  Plot details are being kept under wraps at the moment, but we do know that the story takes place in Tijuana and may include breaking Alan (Zach Galifianakis) out of a mental institution.  Jeong's schedule is being massaged to avoid conflicts with Community, which shoots this August, while The Hangover Part III is set to begin in September.  THR also reports that the threequel will feature the return of Bradley Cooper, Ed Helms and director Todd Phillips.