| Eugene Levy | .... | Mr. Levenstein |
| Bug Hall | .... | Rob |
| Kevin M. Horton | .... | Nathan |
| Brandon Hardesty | .... | Lube |
| Beth Behrs | .... | Heidi |
| Melanie Papalia | .... | Dana |
| Jennifer Holland | .... | Ashley |
| John Patrick Jordan | .... | Scot Stifler |
| Louisa Lytton | .... | Imogen |
| Rosanna Arquette | .... | Rob's Mom |
| Curtis Armstrong | .... | Mr. O'Donnell |
| Cindy Busby | .... | Amy |
| Naomi Hewer | .... | Alyson |
| Edwin Perez | .... | Gibbs |
| Nico McEown | .... | Cody |
| Karin Konoval | .... | Store Manager |
| Carrie Keagan | .... | Sales Lady |
| Willa Potter | .... | Krissi with an 'I' |
| Meghan Feenstra | .... | Sarah |
| Jasmine Mooney | .... | Jackie |
| Dwight Koss | .... | Dana's Dad |
| Jennifer-Juniper Angeli | .... | Dana's Mom |
| Sherman Hemsley | .... | Pastor |
| Jill Teed | .... | Miss Johnson |
| Adrienne Carter | .... | Katie |
| Isaiah States | .... | Shocked Little Boy #1 |
| Cowboy Elliott | .... | Shocked Little Boy #2 |
| Cindy Lucas | .... | French Canadian Babe |
| Giselle Lavande | .... | Monique |
| Jason Benson | .... | US Border Guard |
| Taryn Johnston | .... | Jenny |
| Gino Cocomello | .... | Suave Alumnus Guy |
| Ina Geraldine Guy | .... | Suave Alumnus Guy's Girlfriend |
| Kristina Agosti | .... | Alumnus Guy #4's Wife |
| Holly Eglinton | .... | Shapely Lady of the Evening |
| Kristy Just | .... | Wonderful Lady of the Evening |
| Shannon Cotnam | .... | Superb Lady of the Evening |
| Keana Iwaskow | .... | Delicate Lady of the Evening |
| Daesha Danielle Usman | .... | Fun Girl at Dance |
| Jovana Golubovic | .... | Attractive Hot Tub Girl |
| Anelore Popa | .... | Charming Hot Tub Girl |
| Crystal Tisiga | .... | Graceful Hot Tub Girl |
| Ashley Bryson | .... | Pulchritudinous Hot Tub Girl |
| Laura Mitchell | .... | Cheerful Hot Tub Girl |
| Andy Field | .... | Virile Party Guy |
| Jimmy Johansson | .... | Roguish Party Guy |
| Terry Levergood | .... | Refined Party Guy |
| Phoenix Gordon | .... | Loser In Hot Tub |
| Lila Popa | .... | Puking Drunk Girl |
| Angela Steen | .... | Make Out Girl |
| Keith Dallas | .... | DJ @ Dance |
| Misha Kleider | .... | Radiant Naked Party Guy |
| Matthew Smalley | .... | Awesome Party Dude |
| Alicia Smith | .... | Dazzling Party Girl |
| Renee Slusarenko | .... | Ravishing Party Girl |
| Nicole Chartrand | .... | Cute Party Girl |
| Victoria Campean | .... | Foxy Party Girl |
| Sukhi Sidhu | .... | Lovely Party Girl |
| Mary Jane Mallard | .... | Exquisite Party Girl |
| Melissa Emy | .... | Enticing Party Girl |
| Melissa Peters | .... | Statuesque Party Girl |
| Cheyenne Shamei | .... | Fascinating Wet T-Shirt Girl |
| Karmeyn Loiselle | .... | Tasteful Wet T-Shirt Girl |
| Erin Graves | .... | Sublime Wet T-Shirt Girl |
| Sonni Pacheco | .... | Splendid Wet T-Shirt Girl |
| Soda | .... | 'Frizzy' the dog |
| Elvis | .... | Raccoon |
| Jim Wynorski | .... | Eddie |
| Dustin Diamond | .... | Alumnus Guy #1 - Special Appearance |
| C. Thomas Howell | .... | Alumnus Guy #2 - Special Appearance |
| Christopher Knight | .... | Alumnus Guy #3 - Special Appearance |
| Tim Matheson | .... | Alumnus Guy #4 - Special Appearance |
| Steve Railsback | .... | Alumnus Guy #5 - Special Appearance |
| Robert Romanus | .... | Alumnus Guy #6 - Special Appearance |
| Kevin Federline | .... | Canadian Border Guard - Special Appearan |
| Bret Michaels | .... | Himself - Special Appearance |
| Jesse Bernstein | .... | Nate (uncredited) |
| Eduardo Noda | .... | Church Goer (uncredited) |
| Everrett Shea | .... | Student (uncredited) |
| Chhultim Sherpa | .... | Man on the Street (uncredited) |