Jason Biggs as Jim Levenstein

Chris Klein as Chris 'Oz' Ostreicher

Thomas Ian Nicholas as Kevin Meyers

Alyson Hannigan as Michelle Flaherty

Shannon Elizabeth as Nadia

Tara Reid as Victoria 'Vicky' Lathum

Eddie Kaye Thomas as Paul Finch

Seann William Scott as Steve Stifler

Eugene Levy as Jim's Father

Natasha Lyonne as Jessica

Mena Suvari as Heather

Jennifer Coolidge as Stifler's Mom

Chris Owen as Chuck Sherman

Eric Lively as Albert

Molly Cheek as Jim's Mother

Eli Marienthal as Matt Stifler

Tara Subkoff as College Girl

Lawrence Pressman as Coach Marshall

Clyde Kusatsu as English Teacher

Christina Milian as Band Member

Woody Schultz as Party Guy

Annika Hays as Party Girl

Eden Riegel as Sarah, the Sophomore Chick

Justin Isfeld as Justin

John Cho as John

Alexandra Adi as Central Michigan University Girl

Akuyoe Graham as Vocal Jazz Teacher

Veronica Lauren as Vocal Jazz Girl

Monica McSwain as Vocal Jazz Girl

Fletcher Sheridan as Vocal Jazz Group

Robyn Roth as Vocal Jazz Group

Jamar Cargo as Vocal Jazz Group

Sasha Barrese as Courtney, the Random Cute Girl

Linda Gehringer as Vicky's Mom

Ashton Dane as Vicky's Dad

Katie Lansdale as Enthralled Girl

Jay Rossi as Sushi Customer

James DeBello as Enthusiastic Guy

Travis Cody Aimer as Computer Nerd

Mark Hoppus as Garage Band Member

Tom DeLonge as Garage Band Member

Scott Raynor as Garage Band Member

Daniel Spink as Guy with Monkey

Clementine Ford as Computer Girl

Amber Phillips as Computer Girl

Casey Erklin as Drinking Buddy

Hilary Angelo as Girl Holding Out

Jasmine Stocken as Bathroom Girl

Jillian Bach as Bathroom Girl

David Kuhn as Prom Band Singer

Dan Coronel as Lacrosse Referee

Pete Pallad as Lacrosse Referee

J.D. Doyle as Lacrosse Referee

Lito Coronel as Lacrosse Referee

Markus Botnick as Assistant Lacrosse Coach

Robby Murakami as Lacrosse Player

Addison Krantz as Lacrosse Player

Alex Nies as Lacrosse Player

Roger Sewell as Lacrosse Player

Donald J. Collins as Lacrosse Player

Ryan Bates as Lacrosse Player

Joe Park as Lacrosse Player

Walter Toole as Lacrosse Player

Travis Petraglia as Lacrosse Player

Richard Schoenberg as Lacrosse Player

Amon Button as Lacrosse Player

Steven Hopkins as Lacrosse Player

Peter McPartlin as Lacrosse Player

Sean Elder as Lacrosse Player

Sean Whitacre as Lacrosse Player

Jon Mark Fabiano as Lacrosse Player

Ian Televik as Lacrosse Player

Joshua Mele as Lacrosse Player

Gian Caputo as Lacrosse Player

Garret Kellenberger as Lacrosse Player

Timothy Sovay as Lacrosse Player

Steven McAfoose as Lacrosse Player

Kevin Tidgewell as Lacrosse Player

Jesse Patterson as Lacrosse Player

Jeff Schwartz as Lacrosse Player

Chris Loudos as Lacrosse Player

Lyle Tomlinson as Lacrosse Player

Sami Atayan as Lacrosse Player

Kurt Zimmerman as Lacrosse Player

Tom Christian as Lacrosse Player

Dustan Beitey as Lacrosse Player

Chris McGnie as Lacrosse Player

Tri C. Nguyen as Larcosse Player

Kirk Lamitie as Lacrosse Player

Todd Samuel Parker as Lacrosse Player

Casey Affleck as Tom Myers (uncredited)

Chris Weitz as Male Voice in Porn Film (voice)

Crystal the Monkey as Monkey with Garage Band (uncredited)

Jim Henry as Lacrosse Player (uncredited)

Travis Barker as Garage Band Member (uncredited)

Jennifer Austin as Friend (uncredited)

Ingrid K. Behrens as Female Voice in Porn Film (voice) (uncredited)

Sheypan Draus as Band Geek #1 (uncredited)

Mark-Eugene Garcia as Friend (uncredited)

Melissa Noble as Prom Band Geek (uncredited)

Jami Philbrick as Guy with Headphones on in Lunch Line (uncredited)

Marek Probosz as Motel Owner (uncredited)

Marilyn Staley as T.V. Hostess (uncredited)

David Weinberg as Party Boy (uncredited)