A planned evening of debauchery in Las Vegas to celebrate their best friend's wedding goes horribly -- but hilariously -- wrong for five average guys.
| Actor | Role |
|---|---|
 Kal PennZ-Bob | Z-Bob |
 Jonathan BennettNathan | Nathan |
 Donald FaisonAsh | Ash |
 Charlie TalbertJohnny C. MacElroy | Johnny C. MacElroy |
 Aaron HimelsteinEli | Eli |
 Vincent PastoreCarmine/ Mr. Kidd | Carmine/ Mr. Kidd |
 Chuck LiddellThe Iceman | The Iceman |
 Lin ShayeCassandra | Cassandra |
 Graham BeckelOfficer Stone | Officer Stone |
| TTim PosterCasino Owner | Casino Owner |
 Diane KlimaszewskiChrissy | Chrissy |
 Elaine KlimaszewskiMissy | Missy |
 Brent BriscoeBig Gut Mel | Big Gut Mel |
 Jaime PresslySelf | Self |
 Daniel SternHarry Hard | Harry Hard |
| TTamara WhelanCandy Juggs | Candy Juggs |
| JJeff beacherTed | Ted |
 Diora BairdPenelope | Penelope |
 Marisa PetroroThe Showgirl | The Showgirl |
| RRuth W. BlockSenior Citizen | Senior Citizen |
 Lindsay HollisterBachelorette | Bachelorette |
| GGayle Dawn CominsMaid of honor | Maid of honor |
 Lester SpeightGold Tooth | Gold Tooth |
 Steve HytnerAirport Security | Airport Security |
 Sophia RossiPorn Star | Porn Star |
 Kathy GriffinShe-Elvis | She-Elvis |