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)

Carmi Greene
as Prom Guest (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)