Bradley Cooper character Phil Wenneck
Ed Helms character Stu Price
Zach Galifianakis character Alan Garner
Justin Bartha character Doug Billings
Ken Jeong character Mr. Chow
Paul Giamatti character Kingsley
Mike Tyson character Himself
Jeffrey Tambor character Sid Garner
Mason Lee character Teddy
Jamie Chung character Lauren
Sasha Barrese character Tracy
Gillian Vigman character Stephanie
Aroon Seeboonruang character Monk
Nirut Sirichanya character Fohn
Yasmin Lee character Kimmy
Nick Cassavetes character Tattoo Joe
Sondra Currie character Linda Garner
Bryan Callen character Samir
Brody Stevens character Kingsley Guy
Michael Berry Jr. character Vladi
Andrew Howard character Nikolai
Penpak Sirikul character Joi
Manel Soler character Kingsley Guy #2
Todd Phillips character Mr. Creepy (uncredited)