Steve Zahn
Wayne Lefessier
Jack Black
J.D. McNugent
Jason Biggs
Darren Silverman
Amanda Peet
Judith Fessbeggler
Amanda Detmer
Sandy
R. Lee Ermey
Coach
Neil Diamond
Self
Kyle Gass
Bar Dude
Andrew McIlroy
Waiter
Norman Armour
Minister
Colin Foo
Old Man
Christopher Logan
Vageet
Esme Lambert
Raccoon Woman
Max Fomitchev
Mime
Tony Parsons
Newscaster
Oscar Goncalves
Man
Lillian Carlson
Mother Superior
Mark Aaron Wagner
Luigi
Stephen Chang
Thai Referee
Eliza Norbury
Wayne's Mom
Michael Roberds
Doctor
Sean Owen Roberts
Wong
Ken Camroux-Taylor
Warren
Lowela Jotie
Cheerleader
Odessa Munroe
Hooker
Tracy Trueman
Hooker
Devin Douglas Drewitz
Young Wayne
Carly McKillip
Cute Girl
Carla Boudreau
Beautiful Woman
Biski Gugushe
Cop At Darren's House
Steven McMichael
Josh
Dennis Dugan
Referee
Larry Lam
Thai Kickboxer
Brett Armstrong
Brett
Patrick Pfrimmer
Clayton
Frank L. Frazier
Bouncer (as Frank Frazier)
Eli Ranger
Young Darren
Ivan Jurcev
Young J.D.
Phil Trasolini
Referee on Sideline
David Neale
Cop at Police Station
Mary Ann Skoll
Cop at Police Station
Gus Lynch
Security Guard
Blake Stovin
Wayne's Dad
Brittany Moldowan
Little Girl
Katlyn Alexandra Ducharme
Little Girl
Jared Van Snellenberg
Belston
David B. Levinson
Heston (as David Levinson)
Frank Hache
Abe
Nicole Robert
Nun
Nancy J. Lilley
Bearded Lady
David Mylrea
Dogfaced Boy
Dario Delacio
Strong Man (as Dario Delaco)
Eleana Johnson
Old Lady
Margaret Ryan
Old Lady
Shaz Bennett
Cheerleader (as Shannon Bennett)
Theresa Coombe
Cheerleader
Leigh Hilary
Cheerleader
Jennifer Armstrong
Cheerleader
Linda Bernath
Cheerleader