 | John Cusack als Adam |
 | Craig Robinson als Nick |
 | Rob Corddry als Lou |
 | Clark Duke als Jacob |
 | Sebastian Stan als Blaine |
 | Crispin Glover als Phil |
 | Lyndsy Fonseca als Jennie |
 | Lizzy Caplan als April |
 | Collette Wolfe als Kelly |
 | William Zabka als Rick |
 | Chevy Chase als Repairman |
 | Charlie McDermott als Chaz |
 | Aliu Oyofo als Young Nick |
| Jake Rose als Young Adam |
| Brook Bennett als Young Lou |
 | Yan-Kay Crystal Lowe als Zoe |
 | Jessica Paré als Tara |
 | Kellee Stewart als Courtney |
 | Julia Maxwell als Lucy |
 | Geoff Gustafson als Dr. Jeff |
| Austin Warren als Nick's Band Member |
| Adam Sabla als Nick's Band Member |
| Jocelyn C. Waugh als Nick's Band Member |
| Curtis Santiago als Nick's Band Member |
| Ryan Guldemond als Nick's Band Member |
| Jeremy Page als Nick's Band Member |
| Anthony Dallas als Nick's Band Member |
| Odessa Rojen als Young Courtney |
 | Viv Leacock als Courtney's Dad |
 | Jamie Switch als Massive Cell Phone Guy |
| Chad Garner als "Poison" Tribute Band - Unskinny Bop |
| Donald MacDonald als "Poison" Tribute Band - Unskinny Bop |
| Chad MacDonald als "Poison" Tribute Band - Unskinny Bop |
| Anthony Pagni als "Poison" Tribute Band - Unskinny Bop |
 | Blaine Anderson als MC |
 | Michael Roberds als Manager |
 | Daren A. Herbert als Receptionist |
| Megan Holmes als 'Where's the Beef' Girl |
 | Ecstasia Sanders als Girl at Club |
| Eddie Ruttle als Beer Luge Guy |
| Heathcliffe Scaddan als Beer Luge Guy |
| Peter Wilson als Beer Luge Guy |
| Brent Lister als Blaine's Crony |
| Lars Anderson als Blaine's Crony |
| Paul Dzenkiw als Blaine's Crony |
 | Rhys Williams als Blaine's Crony |
 | Amy Esterle als Hot Tub Girl |
| Natalia Dawn als Hot Tub Girl |
| Ava Leemet als Candy Girl |
 | Willy Lavendel als Fancy Ski Guy |
 | Crystal Tisiga als Fancy Ski Girl |
| Marie West als Winterfest Bartender |
 | Josh Heald als Manager |
 | Lynda Boyd als Adam's Secretary (uncredited) |
 | Jacob Blair als Gunnar (uncredited) |
 | Rob LaBelle als Stewart (uncredited) |
 | Robert Wu als Mr. Wang (uncredited) |
 | Thomas Lennon als Customer (uncredited) |
 | Diora Baird als Rick's Wife (uncredited) |
| Luke Ryan als Hot Tub Bear (uncredited) |
 | Eli Jane als Hot Tub Girl (uncredited) |
 | Amber Hay als Vince Neil's Video Girl (uncredited) |
 | Cole Carson als Guy in Kodiak Restroom (uncredited) |
| Keith Roenke als Kodiak Club Guy (uncredited) |
| Adrienne Rusk als Kodiak Club Girl (uncredited) |
| Jack N. Green | Director of Photography |
| John Cusack | Producer |
| Steve Pink | Director |
| Steve Pink | Music Supervisor |
| Bill Cusack | Art Department Assistant |
| George Folsey Jr. | Editor |
| Kevin Crehan | Music Editor |
| Victoria Rose Sampson | Supervising Dialogue Editor |
| Tony Lamberti | Sound Re-Recording Mixer |
| Bob Ziembicki | Production Design |
| Brad Wilhite | Additional Editing |
| Johanne Hubert | Set Decoration |
| Susie Farris | Casting |
| Christophe Beck | Original Music Composer |
| Christophe Beck | Music |
| Charles Porlier | Special Effects Makeup Artist |
| Jeremy Stanbridge | Art Direction |
| Marny Eng | Stunts |
| Michael Hilkene | Supervising Sound Editor |
| Michael Nelson | Executive Producer |
| Michael Nelson | Unit Production Manager |
| Michael T. Williamson | Production Sound Mixer |
| Kathrine Gordon | Hair Department Head |
| Matt Moore | Producer |
| Brian Leslie Parker | Production Manager |
| John Alvarez | Assistant Art Director |
| Grace Loh | Producer |
| Sean Anders | Screenplay |
| Dana Sano | Music Supervisor |
| Bob Minor | Stunts |
| Scott J. Ateah | Stunts |
| John Morris | Screenplay |
| Peter Stratford | Set Designer |
| Josh Heald | Screenplay |
| Josh Heald | Story |
| Larissa Stadnichuk | Stunts |
| James Bitonti | Second Assistant Director |
| Dayna Pink | Costume Design |
| Oliver Keller | Stunt Double |
| John Ashker | Stunt Double |
| Doug Chapman | Stunt Coordinator |
| John Albanis | Associate Producer |
| Gilles Corbeil | Steadicam Operator |
| Gilles Corbeil | "A" Camera Operator |
| Christopher T. Welch | ADR Editor |
| Joshua Kjorven | Camera Loader |
| Dillard Brinson | Key Grip |
| Linda Dowds | Makeup Department Head |
| Kelvin Humenny | Art Direction |
| Peter Grace | Construction Coordinator |
| Dan O'Connell | Foley Artist |
| Dan DiPrima | Music Editor |
| Brent Connolly | Stunts |
| John T. Cucci | Foley Artist |
| Rino Pace | Location Manager |
| Trevor Habberstad | Stunt Double |
| Willard Overstreet | Foley Supervisor |
| Sheila Millar | Set Designer |
| Bernard Weiser | Dialogue Editor |
| Grant Swain | Property Master |
| Rob McEwan | Still Photographer |
| Ray McIntyre Jr. | Visual Effects Supervisor |
| Carie Wallis | Art Department Coordinator |
| John Dekker | Chief Lighting Technician |
| Michael Minkler | Sound Re-Recording Mixer |
| Candice Stafford | Makeup Artist |
| Terry Wilson | Music Editor |
| Jeff Sawyer | Supervising Sound Effects Editor |
| Joe Everett | Unit Publicist |
| Cecilia Hyoun | First Assistant Editor |
| Lisa Taylor Roberts | Makeup & Hair |
| Angela O'Sullivan | Set Designer |
| Stephanie Rossel | Script Supervisor |
| James Thomas | Editor |
| Charles Kaplan | Additional Editing |
| Christine Coutts | Costume Supervisor |
| Myke Schwartz | Stunts |
| Mark N. Tompkins | Scenic Artist |
| Dan Muscarella | Color Timer |
| Alison Fraser | Assistant Costume Designer |
| Josh King | First Assistant Director |
| Rick Bold | Boom Operator |
| James Ashwill | Foley Mixer |
| Timothy Robin Spencer | First Assistant "B" Camera |
| Jessica Harbeck | Stunts |
| Janet Lonsdale | Production Accountant |
| Heidi Pascoe | Stunts |
| Isabel Henderson | Post Production Supervisor |
| Thomas W. Small | Foley Editor |
| Tabitha Johnson | Assistant Costume Designer |
| Ryan Green | "B" Camera Operator |
| Rebecca Lee | Makeup Artist |
| Sandra Couldwell | Extras Casting |
| April Boyes | Makeup Artist |
| Megan Shank | Third Assistant Director |
| Adrienne Sol | Production Coordinator |
| Rick Stadder | Best Boy Grip |
| Ron MacLeay | Grip |
| Christine White | Production Supervisor |
| Larry Portmann | First Assistant "A" Camera |
| David Marcus | First Assistant Sound Editor |
| Laird Pierce | Second Assistant "B" Camera |
| Loree Cameron | Graphic Designer |
| Savino Peragine | Tailor |
| Ian Gariepy | Grip |
| Kimberly Buckham | Assistant Production Coordinator |
| Barbara Mercer | First Assistant Accountant |
| Harold Bernard | Second Assistant "A" Camera |
| Jill Anderson | Payroll Accountant |
| Elizabeth Umstead | Music Coordinator |
| Beverly K. Sewers | Hairstylist |
| Nadine Sekora | Art Department Assistant |
| Marge Rowland | Post Production Accountant |
| Dean Scheck | Hairstylist |
| Alida Jung | Assistant Set Decoration |
| Diane Berezay | Craft Service |
| Mike Sorochuk | Construction Foreman |
| Ken Hemphill | Grip |
| Jeff Bonny | Grip |
| Rebekah Zantingh | Hairstylist |
